diff --git a/src/main/java/com/hbm/blocks/ModBlocks.java b/src/main/java/com/hbm/blocks/ModBlocks.java
index 9550cd93d..e03b7e264 100644
--- a/src/main/java/com/hbm/blocks/ModBlocks.java
+++ b/src/main/java/com/hbm/blocks/ModBlocks.java
@@ -2626,7 +2626,7 @@ public class ModBlocks {
 		GameRegistry.registerBlock(reinforced_ducrete, ItemBlockBlastInfo.class, reinforced_ducrete.getUnlocalizedName());
 		GameRegistry.registerBlock(concrete_smooth, ItemBlockBlastInfo.class, concrete_smooth.getUnlocalizedName());
 		GameRegistry.registerBlock(concrete_colored, ItemBlockColoredConcrete.class, concrete_colored.getUnlocalizedName());
-		register(concrete_colored_ext);
+		GameRegistry.registerBlock(concrete_colored_ext, ItemBlockBlastInfo.class, concrete_colored_ext.getUnlocalizedName());
 		GameRegistry.registerBlock(concrete, ItemBlockBlastInfo.class, concrete.getUnlocalizedName());
 		GameRegistry.registerBlock(concrete_asbestos, ItemBlockBlastInfo.class, concrete_asbestos.getUnlocalizedName());
 		GameRegistry.registerBlock(concrete_super, ItemBlockBlastInfo.class, concrete_super.getUnlocalizedName());
diff --git a/src/main/java/com/hbm/tileentity/TileEntityMachineBase.java b/src/main/java/com/hbm/tileentity/TileEntityMachineBase.java
index d34c5ee38..81c099073 100644
--- a/src/main/java/com/hbm/tileentity/TileEntityMachineBase.java
+++ b/src/main/java/com/hbm/tileentity/TileEntityMachineBase.java
@@ -8,6 +8,7 @@ import com.hbm.util.fauxpointtwelve.DirPos;
 
 import cpw.mods.fml.common.network.NetworkRegistry.TargetPoint;
 import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
 import net.minecraft.block.Block;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.inventory.ISidedInventory;
@@ -23,6 +24,9 @@ public abstract class TileEntityMachineBase extends TileEntityLoadedBase impleme
 	
 	private String customName;
 	
+	private NBTTagCompound lastPackedNBT = null;
+	private ByteBuf lastPackedBuf = null;
+	
 	public TileEntityMachineBase(int slotCount) {
 		slots = new ItemStack[slotCount];
 	}
@@ -157,7 +161,18 @@ public abstract class TileEntityMachineBase extends TileEntityLoadedBase impleme
 	
 	@Deprecated public void networkPack(NBTTagCompound nbt, int range) {
 		nbt.setBoolean("muffled", muffled);
-		if(!worldObj.isRemote) PacketDispatcher.wrapper.sendToAllAround(new NBTPacket(nbt, xCoord, yCoord, zCoord), new TargetPoint(this.worldObj.provider.dimensionId, xCoord, yCoord, zCoord, range));
+
+		if(worldObj.isRemote) {
+			return;
+		}
+
+		// Same as networkPackNT
+		if (lastPackedNBT != null && lastPackedNBT.equals(nbt) && worldObj.getWorldTime() % 20 != 0) {
+			return;
+		}
+		this.lastPackedNBT = nbt;
+
+		PacketDispatcher.wrapper.sendToAllAround(new NBTPacket(nbt, xCoord, yCoord, zCoord), new TargetPoint(this.worldObj.provider.dimensionId, xCoord, yCoord, zCoord, range));
 	}
 	
 	@Deprecated
@@ -167,7 +182,27 @@ public abstract class TileEntityMachineBase extends TileEntityLoadedBase impleme
 	
 	/** Sends a sync packet that uses ByteBuf for efficient information-cramming */
 	public void networkPackNT(int range) {
-		if(!worldObj.isRemote) PacketDispatcher.wrapper.sendToAllAround(new BufPacket(xCoord, yCoord, zCoord, this), new TargetPoint(this.worldObj.provider.dimensionId, xCoord, yCoord, zCoord, range));
+		if(worldObj.isRemote) {
+			return;
+		}
+
+		BufPacket packet = new BufPacket(xCoord, yCoord, zCoord, this);
+		ByteBuf buf = Unpooled.buffer();
+		packet.toBytes(buf);
+
+		// Don't send unnecessary packets, except for maybe one every second or so.
+		// If we stop sending duplicate packets entirely, this causes issues when
+		// a client unloads and then loads back a chunk with an unchanged tile entity.
+		// For that client, the tile entity will appear default until anything changes about it.
+		// In my testing, this can be reliably reproduced with a full fluid barrel, for instance.
+		// I think it might be fixable by doing something with getDescriptionPacket() and onDataPacket(),
+		// but this sidesteps the problem for the mean time.
+		if (lastPackedBuf != null && buf.equals(lastPackedBuf) && worldObj.getWorldTime() % 20 != 0) {
+			return;
+		}
+		this.lastPackedBuf = buf;
+
+		PacketDispatcher.wrapper.sendToAllAround(packet, new TargetPoint(this.worldObj.provider.dimensionId, xCoord, yCoord, zCoord, range));
 	}
 
 	@Override public void serialize(ByteBuf buf) {
diff --git a/src/main/java/com/hbm/tileentity/network/TileEntityCraneGrabber.java b/src/main/java/com/hbm/tileentity/network/TileEntityCraneGrabber.java
index 728ff2e67..b5bf3c2d0 100644
--- a/src/main/java/com/hbm/tileentity/network/TileEntityCraneGrabber.java
+++ b/src/main/java/com/hbm/tileentity/network/TileEntityCraneGrabber.java
@@ -32,6 +32,7 @@ public class TileEntityCraneGrabber extends TileEntityCraneBase implements IGUIP
 
 	public boolean isWhitelist = false;
 	public ModulePatternMatcher matcher;
+	public long lastGrabbedTick = 0;
 
 	public TileEntityCraneGrabber() {
 		super(11);
@@ -63,7 +64,7 @@ public class TileEntityCraneGrabber extends TileEntityCraneBase implements IGUIP
 				}
 			}
 			
-			if(worldObj.getTotalWorldTime() % delay == 0 && !this.worldObj.isBlockIndirectlyGettingPowered(xCoord, yCoord, zCoord)) {
+			if(worldObj.getTotalWorldTime() >= lastGrabbedTick + delay && !this.worldObj.isBlockIndirectlyGettingPowered(xCoord, yCoord, zCoord)) {
 				int amount = 1;
 				
 				if(slots[9] != null && slots[9].getItem() == ModItems.upgrade_stack) {
@@ -111,6 +112,8 @@ public class TileEntityCraneGrabber extends TileEntityCraneBase implements IGUIP
 						boolean match = this.matchesFilter(stack);
 						if(this.isWhitelist && !match || !this.isWhitelist && match) continue;
 						
+						lastGrabbedTick = worldObj.getTotalWorldTime();
+						
 						ItemStack copy = stack.copy();
 						int toAdd = Math.min(stack.stackSize, amount);
 						copy.stackSize = toAdd;
@@ -132,8 +135,7 @@ public class TileEntityCraneGrabber extends TileEntityCraneBase implements IGUIP
 			
 			
 			NBTTagCompound data = new NBTTagCompound();
-			data.setBoolean("isWhitelist", isWhitelist);
-			this.matcher.writeToNBT(data);
+			this.writeToNBT(data);
 			this.networkPack(data, 15);
 		}
 	}
@@ -141,9 +143,7 @@ public class TileEntityCraneGrabber extends TileEntityCraneBase implements IGUIP
 	public void networkUnpack(NBTTagCompound nbt) {
 		super.networkUnpack(nbt);
 		
-		this.isWhitelist = nbt.getBoolean("isWhitelist");
-		this.matcher.modes = new String[this.matcher.modes.length];
-		this.matcher.readFromNBT(nbt);
+		this.readFromNBT(nbt);
 	}
 	
 	public boolean matchesFilter(ItemStack stack) {
@@ -175,6 +175,7 @@ public class TileEntityCraneGrabber extends TileEntityCraneBase implements IGUIP
 		super.readFromNBT(nbt);
 		this.isWhitelist = nbt.getBoolean("isWhitelist");
 		this.matcher.readFromNBT(nbt);
+		this.lastGrabbedTick = nbt.getLong("lastGrabbedTick");
 	}
 	
 	@Override
@@ -182,6 +183,7 @@ public class TileEntityCraneGrabber extends TileEntityCraneBase implements IGUIP
 		super.writeToNBT(nbt);
 		nbt.setBoolean("isWhitelist", this.isWhitelist);
 		this.matcher.writeToNBT(nbt);
+		nbt.setLong("lastGrabbedTick", lastGrabbedTick);
 	}
 
 	@Override