diff --git a/src/main/java/com/volmit/iris/command/CommandIrisTC.java b/src/main/java/com/volmit/iris/command/CommandIrisTC.java
new file mode 100644
index 000000000..74b54bd67
--- /dev/null
+++ b/src/main/java/com/volmit/iris/command/CommandIrisTC.java
@@ -0,0 +1,55 @@
+package com.volmit.iris.command;
+
+import org.bukkit.World;
+import org.bukkit.entity.Player;
+
+import com.volmit.iris.Iris;
+import com.volmit.iris.gen.IrisChunkGenerator;
+import com.volmit.iris.util.MortarCommand;
+import com.volmit.iris.util.MortarSender;
+
+public class CommandIrisTC extends MortarCommand
+{
+	public CommandIrisTC()
+	{
+		super("ctc");
+		setDescription("Change generator thread count");
+		requiresPermission(Iris.perm.studio);
+		setCategory("World");
+	}
+
+	@Override
+	public boolean handle(MortarSender sender, String[] args)
+	{
+		if(sender.isPlayer())
+		{
+			Player p = sender.player();
+			World world = p.getWorld();
+
+			if(!(world.getGenerator() instanceof IrisChunkGenerator))
+			{
+				sender.sendMessage("You must be in an iris world.");
+				return true;
+			}
+
+			IrisChunkGenerator g = (IrisChunkGenerator) world.getGenerator();
+			int m = Math.min(Math.max(Integer.valueOf(args[0]), 2), 256);
+			g.changeThreadCount(m);
+			sender.sendMessage("Thread count changed to " + m);
+			return true;
+		}
+
+		else
+		{
+			sender.sendMessage("Players only.");
+		}
+
+		return true;
+	}
+
+	@Override
+	protected String getArgsUsage()
+	{
+		return "[thread-count]";
+	}
+}
diff --git a/src/main/java/com/volmit/iris/command/CommandIrisWorld.java b/src/main/java/com/volmit/iris/command/CommandIrisWorld.java
index debab4821..a97898545 100644
--- a/src/main/java/com/volmit/iris/command/CommandIrisWorld.java
+++ b/src/main/java/com/volmit/iris/command/CommandIrisWorld.java
@@ -22,6 +22,9 @@ public class CommandIrisWorld extends MortarCommand
 	@Command
 	private CommandIrisHotload hotload;
 
+	@Command
+	private CommandIrisTC tc;
+
 	public CommandIrisWorld()
 	{
 		super("world", "wrld", "w");
diff --git a/src/main/java/com/volmit/iris/gen/IrisChunkGenerator.java b/src/main/java/com/volmit/iris/gen/IrisChunkGenerator.java
index 9e6bc29f1..462059f35 100644
--- a/src/main/java/com/volmit/iris/gen/IrisChunkGenerator.java
+++ b/src/main/java/com/volmit/iris/gen/IrisChunkGenerator.java
@@ -21,7 +21,6 @@ import com.volmit.iris.object.IrisRegion;
 import com.volmit.iris.util.BiomeResult;
 import com.volmit.iris.util.Form;
 import com.volmit.iris.util.Function2;
-import com.volmit.iris.util.IrisLock;
 import com.volmit.iris.util.KMap;
 import com.volmit.iris.util.RNG;
 
@@ -33,7 +32,6 @@ import lombok.EqualsAndHashCode;
 public class IrisChunkGenerator extends PostBlockChunkGenerator implements IrisContext
 {
 	private Method initLighting;
-	private IrisLock lock;
 	private IrisBiome hb = null;
 	private IrisRegion hr = null;
 	private KMap<Player, IrisBiome> b = new KMap<>();
@@ -41,19 +39,16 @@ public class IrisChunkGenerator extends PostBlockChunkGenerator implements IrisC
 	public IrisChunkGenerator(String dimensionName, int threads)
 	{
 		super(dimensionName, threads);
-		lock = new IrisLock("IrisChunkGenerator");
 	}
 
 	public IrisChunkGenerator(String dimensionName)
 	{
 		super(dimensionName, 16);
-		lock = new IrisLock("IrisChunkGenerator");
 	}
 
 	public IrisChunkGenerator(int tc)
 	{
 		super("", tc);
-		lock = new IrisLock("IrisChunkGenerator");
 	}
 
 	public void hotload()
@@ -73,9 +68,7 @@ public class IrisChunkGenerator extends PostBlockChunkGenerator implements IrisC
 	@Override
 	protected void onGenerate(RNG random, int x, int z, ChunkData data, BiomeGrid grid)
 	{
-		lock.lock();
 		super.onGenerate(random, x, z, data, grid);
-		lock.unlock();
 	}
 
 	public void onInit(World world, RNG rng)
diff --git a/src/main/java/com/volmit/iris/gen/TerrainChunkGenerator.java b/src/main/java/com/volmit/iris/gen/TerrainChunkGenerator.java
index 1d3cecdc3..242316386 100644
--- a/src/main/java/com/volmit/iris/gen/TerrainChunkGenerator.java
+++ b/src/main/java/com/volmit/iris/gen/TerrainChunkGenerator.java
@@ -697,7 +697,6 @@ public abstract class TerrainChunkGenerator extends ParallelChunkGenerator
 						return i.getMax();
 					}
 				}
-
 			}
 
 			catch(Throwable e)
diff --git a/src/main/java/com/volmit/iris/gen/atomics/AtomicMulticache.java b/src/main/java/com/volmit/iris/gen/atomics/AtomicMulticache.java
index 6fe50feb7..0d1cb8ec1 100644
--- a/src/main/java/com/volmit/iris/gen/atomics/AtomicMulticache.java
+++ b/src/main/java/com/volmit/iris/gen/atomics/AtomicMulticache.java
@@ -16,9 +16,6 @@ public class AtomicMulticache
 	private final KMap<Long, BiomeResult> biome;
 	private final KMap<Long, BiomeResult> rawBiome;
 	private final KMap<Long, IrisRegion> region;
-	private int r = 0;
-	private int w = 0;
-	private int m = 0;
 
 	public AtomicMulticache()
 	{
@@ -34,9 +31,6 @@ public class AtomicMulticache
 	{
 		this.x.set(x);
 		this.z.set(z);
-		r = 0;
-		w = 0;
-		m = 0;
 
 		if(!IrisSettings.get().sharedCaching || getSize() > 42000)
 		{
@@ -46,70 +40,58 @@ public class AtomicMulticache
 
 	public double getHeight(int x, int z, Supplier<Double> g)
 	{
-		return height.compute(pos(x, z), (k, v) ->
+		Long pos = pos(x, z);
+		Double r = height.get(pos);
+
+		if(r == null)
 		{
-			if(v == null)
-			{
-				m++;
-				w++;
-				return g.get();
-			}
+			r = g.get();
+			height.put(pos, r);
+		}
 
-			r++;
-
-			return v;
-		});
+		return r;
 	}
 
 	public IrisRegion getRegion(int x, int z, Supplier<IrisRegion> g)
 	{
-		return region.compute(pos(x, z), (k, v) ->
+		Long pos = pos(x, z);
+		IrisRegion r = region.get(pos);
+
+		if(r == null)
 		{
-			if(v == null)
-			{
-				m++;
-				w++;
-				return g.get();
-			}
+			r = g.get();
+			region.put(pos, r);
+		}
 
-			r++;
-
-			return v;
-		});
+		return r;
 	}
 
 	public BiomeResult getBiome(int x, int z, Supplier<BiomeResult> g)
 	{
-		return biome.compute(pos(x, z), (k, v) ->
+		Long pos = pos(x, z);
+		BiomeResult r = biome.get(pos);
+
+		if(r == null)
 		{
-			if(v == null)
-			{
-				m++;
-				w++;
-				return g.get();
-			}
+			r = g.get();
+			biome.put(pos, r);
+		}
 
-			r++;
-
-			return v;
-		});
+		return r;
 	}
 
 	public BiomeResult getRawBiome(int x, int z, Supplier<BiomeResult> g)
 	{
-		return rawBiome.compute(pos(x, z), (k, v) ->
+		Long pos = pos(x, z);
+		BiomeResult r = rawBiome.get(pos);
+
+		if(r == null)
 		{
-			if(v == null)
-			{
-				m++;
-				w++;
-				return g.get();
-			}
+			r = g.get();
+			rawBiome.put(pos, r);
+		}
 
-			r++;
-
-			return v;
-		});
+		return r;
 	}
 
 	private long pos(int x, int z)
diff --git a/src/main/java/com/volmit/iris/gen/layer/GenLayerCave.java b/src/main/java/com/volmit/iris/gen/layer/GenLayerCave.java
index 7cf096d8e..7539dd2cc 100644
--- a/src/main/java/com/volmit/iris/gen/layer/GenLayerCave.java
+++ b/src/main/java/com/volmit/iris/gen/layer/GenLayerCave.java
@@ -178,7 +178,7 @@ public class GenLayerCave extends GenLayer
 
 	public boolean canAir(Material m)
 	{
-		return (m.isSolid() || (B.isDecorant(m)) || m.equals(Material.AIR) || m.equals(B.mat("CAVE_AIR"))) && !m.equals(Material.BEDROCK);
+		return (B.isSolid(m) || (B.isDecorant(m)) || m.equals(Material.AIR) || m.equals(B.mat("CAVE_AIR"))) && !m.equals(Material.BEDROCK);
 	}
 
 	public boolean canWater(Material m)
@@ -188,7 +188,7 @@ public class GenLayerCave extends GenLayer
 
 	public boolean can(Material m)
 	{
-		return m.isSolid() && !m.equals(Material.BEDROCK);
+		return B.isSolid(m) && !m.equals(Material.BEDROCK);
 	}
 
 	@Override
diff --git a/src/main/java/com/volmit/iris/util/GroupedExecutor.java b/src/main/java/com/volmit/iris/util/GroupedExecutor.java
index bafa9c0f8..459575254 100644
--- a/src/main/java/com/volmit/iris/util/GroupedExecutor.java
+++ b/src/main/java/com/volmit/iris/util/GroupedExecutor.java
@@ -12,13 +12,11 @@ public class GroupedExecutor
 {
 	private int xc;
 	private ExecutorService service;
-	private IrisLock lock;
 	private KMap<String, Integer> mirror;
 
 	public GroupedExecutor(int threadLimit, int priority, String name)
 	{
 		xc = 1;
-		lock = new IrisLock("GX");
 		mirror = new KMap<String, Integer>();
 
 		if(threadLimit == 1)
@@ -79,8 +77,6 @@ public class GroupedExecutor
 
 		while(true)
 		{
-			J.sleep(0);
-
 			if(mirror.get(g) == 0)
 			{
 				break;
@@ -97,13 +93,8 @@ public class GroupedExecutor
 
 	public void queue(String q, NastyRunnable r)
 	{
-		lock.lock();
-		if(!mirror.containsKey(q))
-		{
-			mirror.put(q, 0);
-		}
-		mirror.put(q, mirror.get(q) + 1);
-		lock.unlock();
+		mirror.compute(q, (k, v) -> k == null || v == null ? 1 : v + 1);
+
 		service.execute(() ->
 		{
 			try
@@ -116,9 +107,7 @@ public class GroupedExecutor
 
 			}
 
-			lock.lock();
-			mirror.put(q, mirror.get(q) - 1);
-			lock.unlock();
+			mirror.compute(q, (k, v) -> v - 1);
 		});
 	}
 
@@ -126,7 +115,7 @@ public class GroupedExecutor
 	{
 		J.a(() ->
 		{
-			J.sleep(10000);
+			J.sleep(100);
 			service.shutdown();
 		});
 	}
diff --git a/src/main/java/com/volmit/iris/util/IrisInterpolation.java b/src/main/java/com/volmit/iris/util/IrisInterpolation.java
index 2c1bb72c9..4a6d665a5 100644
--- a/src/main/java/com/volmit/iris/util/IrisInterpolation.java
+++ b/src/main/java/com/volmit/iris/util/IrisInterpolation.java
@@ -132,6 +132,13 @@ public class IrisInterpolation
 		return cubic(cubic(p00, p01, p02, p03, muy), cubic(p10, p11, p12, p13, muy), cubic(p20, p21, p22, p23, muy), cubic(p30, p31, p32, p33, muy), mux);
 	}
 
+	public static double trilerp(double v1, double v2, double v3, double v4, double v5, double v6, double v7, double v8, double x, double y, double z)
+	{
+		double s = blerp(v1, v2, v3, v4, x, y);
+		double t = blerp(v5, v6, v7, v8, x, y);
+		return lerp(s, t, z);
+	}
+
 	public static double getBilinearNoise(int x, int z, double rad, NoiseProvider n)
 	{
 		int fx = (int) Math.floor(x / rad);