Attempting to change break speed

src/main/java/biomesoplenty/common/blocks/BlockMud.java

@@ -31,6 +31,7 @@ public class BlockMud extends Block
 		
 		//TODO: this.setHardness
 		this.func_149711_c(0.6F);
+		this.setHarvestLevel("shovel", 0);
 		
 		//TODO setStepSound(Block.soundSandFootstep)
 		this.func_149672_a(Block.field_149776_m);

src/main/java/biomesoplenty/common/items/ItemBOPAxe.java

@@ -17,6 +17,8 @@ public class ItemBOPAxe extends ItemAxe
 		
 		this.textureID = texture;
 		
+		this.setHarvestLevel("axe", 4);
+		
 		this.setCreativeTab(BiomesOPlenty.tabBiomesOPlenty);
 	}
 

src/main/java/biomesoplenty/common/items/ItemBOPPickaxe.java

@@ -16,6 +16,8 @@ public class ItemBOPPickaxe extends ItemPickaxe
 		
 		this.textureID = texture;
 		
+		this.setHarvestLevel("pickaxe", 4);
+		
 		this.setCreativeTab(BiomesOPlenty.tabBiomesOPlenty);
 	}
 

src/main/java/biomesoplenty/common/items/ItemBOPSpade.java

@@ -16,7 +16,9 @@ public class ItemBOPSpade extends ItemSpade
 		
 		this.textureID = texture;
 		
-		setCreativeTab(BiomesOPlenty.tabBiomesOPlenty);
+		this.setHarvestLevel("shovel", 4);
+		
+		this.setCreativeTab(BiomesOPlenty.tabBiomesOPlenty);
 	}
 
 	@Override