diff --git a/src/main/java/cr0s/warpdrive/api/IBlockTransformer.java b/src/main/java/cr0s/warpdrive/api/IBlockTransformer.java
index 6d5840ec..b4ff542d 100644
--- a/src/main/java/cr0s/warpdrive/api/IBlockTransformer.java
+++ b/src/main/java/cr0s/warpdrive/api/IBlockTransformer.java
@@ -4,9 +4,10 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public interface IBlockTransformer {
-	// Return true if this transformer is applicable to that TileEntity.
+	// Return true if this transformer is applicable to that block.
 	boolean isApplicable(final Block block, final int metadata, final TileEntity tileEntity);
 	
 	// Called when preparing to save a ship structure.
@@ -17,23 +18,26 @@ public interface IBlockTransformer {
 	// Use this to save external data in the ship schematic.
 	// You don't need to save Block and TileEntity data here, it's already covered.
 	// Warning: do NOT assume that the ship will be removed!
-	NBTBase saveExternals(final TileEntity tileEntity);
+	NBTBase saveExternals(final World world, final int x, final int y, final int z,
+	                      final Block block, final int blockMeta, final TileEntity tileEntity);
 	
 	// Called when removing the original ship structure.
 	// Use this to prevents drops, clear energy networks, etc.
 	// Block and TileEntity will be removed right after this call. 
 	// When moving, the new ship is placed first.
-	void remove(TileEntity tileEntity);
+	void remove(final TileEntity tileEntity);
 	
 	// Called when restoring a ship in the world.
 	// Use this to apply metadata & NBT rotation, right before block & tile entity placement.
 	// Use priority placement to ensure dependent blocks are placed first.
 	// Warning: do NOT place the block or tile entity!
-	int rotate(final Block block, int metadata, NBTTagCompound nbtTileEntity, ITransformation transformation);
+	int rotate(final Block block, int metadata, final NBTTagCompound nbtTileEntity, final ITransformation transformation);
 	
 	// Called when placing back a ship in the world.
 	// Use this to restore external data from the ship schematic, right after block & tile entity placement.
 	// Use priority placement to ensure dependent blocks are placed first.
 	// This is will be called whether saveExternals returned null or not.
-	void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase);
+	void restoreExternals(final World world, final int x, final int y, final int z,
+	                      final Block block, final int blockMeta, final TileEntity tileEntity,
+	                      final ITransformation transformation, final NBTBase nbtBase);
 }
\ No newline at end of file
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatAdvancedRepulsionSystems.java b/src/main/java/cr0s/warpdrive/compat/CompatAdvancedRepulsionSystems.java
index 38852dc3..d816b291 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatAdvancedRepulsionSystems.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatAdvancedRepulsionSystems.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatAdvancedRepulsionSystems implements IBlockTransformer {
 	
@@ -42,7 +43,7 @@ public class CompatAdvancedRepulsionSystems implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -114,7 +115,7 @@ public class CompatAdvancedRepulsionSystems implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,	                             final Block block, final int blockMeta, final TileEntity tileEntity,	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatAppliedEnergistics2.java b/src/main/java/cr0s/warpdrive/compat/CompatAppliedEnergistics2.java
index 7293fa7c..d1ed648a 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatAppliedEnergistics2.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatAppliedEnergistics2.java
@@ -16,6 +16,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatAppliedEnergistics2 implements IBlockTransformer {
 	
@@ -67,7 +68,7 @@ public class CompatAppliedEnergistics2 implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -186,7 +187,7 @@ public class CompatAppliedEnergistics2 implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,	                             final Block block, final int blockMeta, final TileEntity tileEntity,	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatArsMagica2.java b/src/main/java/cr0s/warpdrive/compat/CompatArsMagica2.java
index 2414603b..287c8ccb 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatArsMagica2.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatArsMagica2.java
@@ -57,7 +57,7 @@ public class CompatArsMagica2 implements IBlockTransformer {
 	
 	@Override
 	@Optional.Method(modid = "arsmagica2")
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		if (tileEntity instanceof IPowerNode) {
 			return PowerNodeRegistry.For(tileEntity.getWorldObj()).getDataCompoundForNode((IPowerNode) tileEntity);
 		}
@@ -127,7 +127,7 @@ public class CompatArsMagica2 implements IBlockTransformer {
 	
 	@Override
 	@Optional.Method(modid = "arsmagica2")
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,	                             final Block block, final int blockMeta, final TileEntity tileEntity,	                             final ITransformation transformation, final NBTBase nbtBase) {
 		if (!(tileEntity instanceof IPowerNode) || nbtBase == null) {
 			return;
 		}
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatBiblioCraft.java b/src/main/java/cr0s/warpdrive/compat/CompatBiblioCraft.java
index 45eb70f3..9bf1ea6d 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatBiblioCraft.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatBiblioCraft.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatBiblioCraft implements IBlockTransformer {
 	
@@ -39,7 +40,7 @@ public class CompatBiblioCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -132,7 +133,9 @@ public class CompatBiblioCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatBotania.java b/src/main/java/cr0s/warpdrive/compat/CompatBotania.java
index fead5e0a..9358bd9c 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatBotania.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatBotania.java
@@ -9,6 +9,7 @@ import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.world.World;
 
 public class CompatBotania implements IBlockTransformer {
 	
@@ -42,7 +43,7 @@ public class CompatBotania implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -111,7 +112,7 @@ public class CompatBotania implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,	                             final Block block, final int blockMeta, final TileEntity tileEntity,	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatBuildCraft.java b/src/main/java/cr0s/warpdrive/compat/CompatBuildCraft.java
index 42efa50e..10a9862f 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatBuildCraft.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatBuildCraft.java
@@ -13,6 +13,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatBuildCraft implements IBlockTransformer {
 	
@@ -59,7 +60,7 @@ public class CompatBuildCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -240,7 +241,7 @@ public class CompatBuildCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,	                             final Block block, final int blockMeta, final TileEntity tileEntity,	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatCarpentersBlocks.java b/src/main/java/cr0s/warpdrive/compat/CompatCarpentersBlocks.java
index e07a9993..756f75a2 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatCarpentersBlocks.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatCarpentersBlocks.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatCarpentersBlocks implements IBlockTransformer {
 	
@@ -71,7 +72,7 @@ public class CompatCarpentersBlocks implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -341,7 +342,9 @@ public class CompatCarpentersBlocks implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatComputerCraft.java b/src/main/java/cr0s/warpdrive/compat/CompatComputerCraft.java
index 17a5d2d1..ab24e3f2 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatComputerCraft.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatComputerCraft.java
@@ -9,6 +9,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatComputerCraft implements IBlockTransformer {
 	
@@ -42,7 +43,7 @@ public class CompatComputerCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -132,7 +133,9 @@ public class CompatComputerCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatCustomNpcs.java b/src/main/java/cr0s/warpdrive/compat/CompatCustomNpcs.java
index 3e381177..7d07317b 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatCustomNpcs.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatCustomNpcs.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatCustomNpcs implements IBlockTransformer {
 	
@@ -48,7 +49,7 @@ public class CompatCustomNpcs implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -162,7 +163,9 @@ public class CompatCustomNpcs implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatEnderIO.java b/src/main/java/cr0s/warpdrive/compat/CompatEnderIO.java
index d5211daa..86ba23ec 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatEnderIO.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatEnderIO.java
@@ -16,6 +16,7 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.world.World;
 
 import net.minecraftforge.common.util.Constants;
 
@@ -45,7 +46,7 @@ public class CompatEnderIO implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -306,7 +307,9 @@ public class CompatEnderIO implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatEvilCraft.java b/src/main/java/cr0s/warpdrive/compat/CompatEvilCraft.java
index 968a0154..d06b4ff6 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatEvilCraft.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatEvilCraft.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatEvilCraft implements IBlockTransformer {
 	
@@ -33,7 +34,7 @@ public class CompatEvilCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -77,7 +78,9 @@ public class CompatEvilCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatForgeMultipart.java b/src/main/java/cr0s/warpdrive/compat/CompatForgeMultipart.java
index 786ff95d..cbf2f98a 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatForgeMultipart.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatForgeMultipart.java
@@ -52,7 +52,7 @@ public class CompatForgeMultipart implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -176,7 +176,9 @@ public class CompatForgeMultipart implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatImmersiveEngineering.java b/src/main/java/cr0s/warpdrive/compat/CompatImmersiveEngineering.java
index 47654839..810d9cbc 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatImmersiveEngineering.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatImmersiveEngineering.java
@@ -44,7 +44,7 @@ public class CompatImmersiveEngineering implements IBlockTransformer {
 	
 	@Override
 	@Optional.Method(modid = "ImmersiveEngineering")
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		if (tileEntity instanceof IImmersiveConnectable) {
 			ChunkCoordinates node = new ChunkCoordinates(tileEntity.xCoord, tileEntity.yCoord, tileEntity.zCoord);
 			Collection<Connection> connections = ImmersiveNetHandler.INSTANCE.getConnections(tileEntity.getWorldObj(), node);
@@ -92,7 +92,9 @@ public class CompatImmersiveEngineering implements IBlockTransformer {
 	
 	@Override
 	@Optional.Method(modid = "ImmersiveEngineering")
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		NBTTagList nbtImmersiveEngineering = (NBTTagList) nbtBase;
 		if (nbtImmersiveEngineering == null) {
 			return;
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatIndustrialCraft2.java b/src/main/java/cr0s/warpdrive/compat/CompatIndustrialCraft2.java
index 7b071802..d3598b51 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatIndustrialCraft2.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatIndustrialCraft2.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatIndustrialCraft2 implements IBlockTransformer {
 	
@@ -33,7 +34,7 @@ public class CompatIndustrialCraft2 implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -68,7 +69,9 @@ public class CompatIndustrialCraft2 implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatJABBA.java b/src/main/java/cr0s/warpdrive/compat/CompatJABBA.java
index 4c88f670..1cc78f27 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatJABBA.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatJABBA.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatJABBA implements IBlockTransformer {
 	
@@ -33,7 +34,7 @@ public class CompatJABBA implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -118,7 +119,9 @@ public class CompatJABBA implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatMekanism.java b/src/main/java/cr0s/warpdrive/compat/CompatMekanism.java
index a1bd2a74..dd178c96 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatMekanism.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatMekanism.java
@@ -12,6 +12,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatMekanism implements IBlockTransformer {
 	
@@ -38,7 +39,7 @@ public class CompatMekanism implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -119,7 +120,9 @@ public class CompatMekanism implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatMetallurgy.java b/src/main/java/cr0s/warpdrive/compat/CompatMetallurgy.java
index 3daf2523..a37c2380 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatMetallurgy.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatMetallurgy.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatMetallurgy implements IBlockTransformer {
 	
@@ -33,7 +34,7 @@ public class CompatMetallurgy implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -70,7 +71,9 @@ public class CompatMetallurgy implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatNatura.java b/src/main/java/cr0s/warpdrive/compat/CompatNatura.java
index 4b09f25d..d690c49f 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatNatura.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatNatura.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatNatura implements IBlockTransformer {
 	
@@ -33,7 +34,7 @@ public class CompatNatura implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -71,7 +72,9 @@ public class CompatNatura implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatOpenComputers.java b/src/main/java/cr0s/warpdrive/compat/CompatOpenComputers.java
index d0edd800..4d5f6bb1 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatOpenComputers.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatOpenComputers.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatOpenComputers implements IBlockTransformer {
 	
@@ -33,7 +34,7 @@ public class CompatOpenComputers implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -68,7 +69,9 @@ public class CompatOpenComputers implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatPneumaticCraft.java b/src/main/java/cr0s/warpdrive/compat/CompatPneumaticCraft.java
index 49561448..adb8ea2c 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatPneumaticCraft.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatPneumaticCraft.java
@@ -10,6 +10,7 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.world.World;
 
 public class CompatPneumaticCraft implements IBlockTransformer {
 	
@@ -35,7 +36,8 @@ public class CompatPneumaticCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
+		// nothing to do
 		return null;
 	}
 	
@@ -187,7 +189,9 @@ public class CompatPneumaticCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatRedstonePaste.java b/src/main/java/cr0s/warpdrive/compat/CompatRedstonePaste.java
index eea6383a..e243147a 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatRedstonePaste.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatRedstonePaste.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatRedstonePaste implements IBlockTransformer {
 	
@@ -33,7 +34,7 @@ public class CompatRedstonePaste implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -198,7 +199,9 @@ public class CompatRedstonePaste implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatSGCraft.java b/src/main/java/cr0s/warpdrive/compat/CompatSGCraft.java
index 067b9eab..43e67ee8 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatSGCraft.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatSGCraft.java
@@ -12,6 +12,7 @@ import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.world.World;
 
 public class CompatSGCraft implements IBlockTransformer {
 	
@@ -58,7 +59,7 @@ public class CompatSGCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -113,7 +114,9 @@ public class CompatSGCraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatStargateTech2.java b/src/main/java/cr0s/warpdrive/compat/CompatStargateTech2.java
index 99d5f4d5..abcfa135 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatStargateTech2.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatStargateTech2.java
@@ -17,6 +17,7 @@ import net.minecraft.nbt.NBTTagByte;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.world.World;
 
 public class CompatStargateTech2 implements IBlockTransformer {
 	
@@ -52,7 +53,7 @@ public class CompatStargateTech2 implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -149,7 +150,9 @@ public class CompatStargateTech2 implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		if (classTileTransportRing.isInstance(tileEntity)) {
 			try {
 				methodTileTransportRing_link.invoke(tileEntity);
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatTConstruct.java b/src/main/java/cr0s/warpdrive/compat/CompatTConstruct.java
index b2f3f4e4..e819b45c 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatTConstruct.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatTConstruct.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatTConstruct implements IBlockTransformer {
 	
@@ -45,7 +46,7 @@ public class CompatTConstruct implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -100,7 +101,9 @@ public class CompatTConstruct implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatTechguns.java b/src/main/java/cr0s/warpdrive/compat/CompatTechguns.java
index b4c7b791..15d242a4 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatTechguns.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatTechguns.java
@@ -9,6 +9,7 @@ import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.world.World;
 
 public class CompatTechguns implements IBlockTransformer {
 	
@@ -43,7 +44,7 @@ public class CompatTechguns implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -214,7 +215,9 @@ public class CompatTechguns implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatThaumcraft.java b/src/main/java/cr0s/warpdrive/compat/CompatThaumcraft.java
index 0c7e6076..1e9db15e 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatThaumcraft.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatThaumcraft.java
@@ -9,6 +9,7 @@ import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.world.World;
 
 import net.minecraftforge.common.util.Constants;
 
@@ -60,7 +61,7 @@ public class CompatThaumcraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -337,7 +338,9 @@ public class CompatThaumcraft implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatThermalDynamics.java b/src/main/java/cr0s/warpdrive/compat/CompatThermalDynamics.java
index 643a7ed9..63160833 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatThermalDynamics.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatThermalDynamics.java
@@ -12,6 +12,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatThermalDynamics implements IBlockTransformer {
 	
@@ -38,7 +39,7 @@ public class CompatThermalDynamics implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -103,7 +104,9 @@ public class CompatThermalDynamics implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatThermalExpansion.java b/src/main/java/cr0s/warpdrive/compat/CompatThermalExpansion.java
index d83a27c6..c5b94295 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatThermalExpansion.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatThermalExpansion.java
@@ -8,6 +8,7 @@ import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.World;
 
 public class CompatThermalExpansion implements IBlockTransformer {
 	
@@ -34,7 +35,7 @@ public class CompatThermalExpansion implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		// nothing to do
 		return null;
 	}
@@ -140,7 +141,9 @@ public class CompatThermalExpansion implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
 		// nothing to do
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/compat/CompatWarpDrive.java b/src/main/java/cr0s/warpdrive/compat/CompatWarpDrive.java
index 063d93df..54a94a4d 100644
--- a/src/main/java/cr0s/warpdrive/compat/CompatWarpDrive.java
+++ b/src/main/java/cr0s/warpdrive/compat/CompatWarpDrive.java
@@ -3,14 +3,20 @@ package cr0s.warpdrive.compat;
 
 import cr0s.warpdrive.api.IBlockTransformer;
 import cr0s.warpdrive.api.ITransformation;
+import cr0s.warpdrive.block.breathing.BlockAirFlow;
+import cr0s.warpdrive.block.breathing.BlockAirSource;
 import cr0s.warpdrive.block.energy.TileEntityEnergyBank;
 import cr0s.warpdrive.block.hull.BlockHullSlab;
 import cr0s.warpdrive.config.WarpDriveConfig;
+import cr0s.warpdrive.data.StateAir;
+import cr0s.warpdrive.event.ChunkHandler;
 
 import net.minecraft.block.Block;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.IWorldAccess;
+import net.minecraft.world.World;
 
 public class CompatWarpDrive implements IBlockTransformer {
 	
@@ -30,8 +36,17 @@ public class CompatWarpDrive implements IBlockTransformer {
 	}
 	
 	@Override
-	public NBTBase saveExternals(final TileEntity tileEntity) {
-		// nothing to do
+	public NBTBase saveExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity) {
+		if (block instanceof BlockAirFlow || block instanceof BlockAirSource) {
+			final int dataAir = ChunkHandler.getChunkData(world, x, y, z).getDataAir(x, y, z);
+			if (dataAir == StateAir.AIR_DEFAULT) {
+				return null;
+			}
+			final NBTTagCompound tagCompound = new NBTTagCompound();
+			tagCompound.setInteger("dataAir", dataAir);
+			return tagCompound;
+		}
 		return null;
 	}
 	
@@ -89,7 +104,18 @@ public class CompatWarpDrive implements IBlockTransformer {
 	}
 	
 	@Override
-	public void restoreExternals(TileEntity tileEntity, ITransformation transformation, NBTBase nbtBase) {
-		// nothing to do
+	public void restoreExternals(final World world, final int x, final int y, final int z,
+	                             final Block block, final int blockMeta, final TileEntity tileEntity,
+	                             final ITransformation transformation, final NBTBase nbtBase) {
+		if (nbtBase == null) {
+			return;
+		}
+		if (!(nbtBase instanceof NBTTagCompound)) {
+			return;
+		}
+		if (((NBTTagCompound) nbtBase).hasKey("dataAir")) {
+			final int dataAir = ((NBTTagCompound) nbtBase).getInteger("dataAir");
+			ChunkHandler.getChunkData(world, x, y, z).setDataAir(x, y, z, dataAir);
+		}
 	}
 }
diff --git a/src/main/java/cr0s/warpdrive/data/ChunkData.java b/src/main/java/cr0s/warpdrive/data/ChunkData.java
index 4c0c30a6..9996048e 100644
--- a/src/main/java/cr0s/warpdrive/data/ChunkData.java
+++ b/src/main/java/cr0s/warpdrive/data/ChunkData.java
@@ -339,7 +339,7 @@ public class ChunkData {
 		return dataAirSegment[indexData & 0xFFF];
 	}
 	
-	protected void setDataAir(final int x, final int y, final int z, final int dataAirBlock) {
+	public void setDataAir(final int x, final int y, final int z, final int dataAirBlock) {
 		final int indexData = getDataIndex(x, y, z);
 		
 		// get segment
diff --git a/src/main/java/cr0s/warpdrive/data/JumpBlock.java b/src/main/java/cr0s/warpdrive/data/JumpBlock.java
index f0d82b0a..98d3888e 100644
--- a/src/main/java/cr0s/warpdrive/data/JumpBlock.java
+++ b/src/main/java/cr0s/warpdrive/data/JumpBlock.java
@@ -71,7 +71,7 @@ public class JumpBlock {
 	public JumpBlock() {
 	}
 	
-	public JumpBlock(Block block, int blockMeta, TileEntity tileEntity, int x, int y, int z) {
+	public JumpBlock(final World world, final int x, final int y, final int z, final Block block, final int blockMeta, final TileEntity tileEntity) {
 		this.block = block;
 		this.blockMeta = blockMeta;
 		blockTileEntity = tileEntity;
@@ -82,7 +82,7 @@ public class JumpBlock {
 		// save externals
 		for (Entry<String, IBlockTransformer> entryBlockTransformer : WarpDriveConfig.blockTransformers.entrySet()) {
 			if (entryBlockTransformer.getValue().isApplicable(block, blockMeta, tileEntity)) {
-				NBTBase nbtBase = entryBlockTransformer.getValue().saveExternals(tileEntity);
+				NBTBase nbtBase = entryBlockTransformer.getValue().saveExternals(world, x, y, z, block, blockMeta, tileEntity);
 				setExternal(entryBlockTransformer.getKey(), nbtBase);
 			}
 		}
@@ -137,7 +137,7 @@ public class JumpBlock {
 	private static final byte[] mrotStair          = {  2,  3,  1,  0,  6,  7,  5,  4,  8,  9, 10, 11, 12, 13, 14, 15 };
 	private static final byte[] mrotSign           = {  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,  0,  1,  2,  3 };	// Sign, Skull
 	private static final byte[] mrotTrapDoor       = {  3,  2,  0,  1,  7,  6,  4,  5, 11, 10,  8,  9, 15, 14, 12, 13 };
-	private static final byte[] mrotLever          = {  7,  2,  3,  4,  1,  6,  5,  0, 15, 11, 12, 10,  9, 14, 13,  8 };
+	private static final byte[] mrotLever          = {  7,  3,  4,  2,  1,  6,  5,  0, 15, 11, 12, 10,  9, 14, 13,  8 };
 	private static final byte[] mrotNetherPortal   = {  0,  2,  1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15 };
 	private static final byte[] mrotVine           = {  0,  2,  4,  6,  8, 10, 12, 14,  1,  3,  5,  7,  9, 11, 13, 15 };
 	private static final byte[] mrotButton         = {  0,  3,  4,  2,  1,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15 };	// Button, torch (normal, redstone lit/unlit)
diff --git a/src/main/java/cr0s/warpdrive/data/JumpShip.java b/src/main/java/cr0s/warpdrive/data/JumpShip.java
index 06da1e36..f773b841 100644
--- a/src/main/java/cr0s/warpdrive/data/JumpShip.java
+++ b/src/main/java/cr0s/warpdrive/data/JumpShip.java
@@ -316,9 +316,9 @@ public class JumpShip {
 									return false;
 								}
 								
-								int blockMeta = worldObj.getBlockMetadata(x, y, z);
-								TileEntity tileEntity = worldObj.getTileEntity(x, y, z);
-								JumpBlock jumpBlock = new JumpBlock(block, blockMeta, tileEntity, x, y, z);
+								final int blockMeta = worldObj.getBlockMetadata(x, y, z);
+								final TileEntity tileEntity = worldObj.getTileEntity(x, y, z);
+								JumpBlock jumpBlock = new JumpBlock(worldObj, x, y, z, block, blockMeta, tileEntity);
 								
 								if (jumpBlock.blockTileEntity != null && jumpBlock.externals != null) {
 									for (Entry<String, NBTBase> external : jumpBlock.externals.entrySet()) {
diff --git a/src/main/java/cr0s/warpdrive/data/StateAir.java b/src/main/java/cr0s/warpdrive/data/StateAir.java
index 49526e26..8d330d80 100644
--- a/src/main/java/cr0s/warpdrive/data/StateAir.java
+++ b/src/main/java/cr0s/warpdrive/data/StateAir.java
@@ -25,7 +25,7 @@ import net.minecraftforge.fluids.BlockFluidBase;
 
 public class StateAir {
 	
-	static final int AIR_DEFAULT = 0x060000C0;      // default is the unknown state
+	public static final int AIR_DEFAULT = 0x060000C0;      // default is the unknown state
 	
 	// highest bit is unusable since Java only supports signed primitives (mostly)
 	static final int USED_MASK                 = 0b01110111111111111111111100001111;
diff --git a/src/main/java/cr0s/warpdrive/event/JumpSequencer.java b/src/main/java/cr0s/warpdrive/event/JumpSequencer.java
index f2f8af91..af3153eb 100644
--- a/src/main/java/cr0s/warpdrive/event/JumpSequencer.java
+++ b/src/main/java/cr0s/warpdrive/event/JumpSequencer.java
@@ -918,7 +918,8 @@ public class JumpSequencer extends AbstractSequencer {
 						
 						ChunkCoordinates target = transformation.apply(jumpBlock.x, jumpBlock.y, jumpBlock.z);
 						TileEntity newTileEntity = targetWorld.getTileEntity(target.posX, target.posY, target.posZ);
-						blockTransformer.restoreExternals(newTileEntity, transformation, external.getValue());
+						blockTransformer.restoreExternals(targetWorld, target.posX, target.posY, target.posZ,
+						                                  jumpBlock.block, jumpBlock.blockMeta, newTileEntity, transformation, external.getValue());
 					}
 				}
 				index++;