I think it would be more clear if you used the same format here as I did for the block crafting
```
		GameRegistry.addShapedRecipe(new ItemStack(blockLimestoneBrick, 4), new Object[] {
			"XX",
			"XX",
			'X', blockLimestone
		});
```

That way you can easily picture the grid and see the setup. Doesn't matter so much for this as it's clear that it's three rows of the same item, but overall it's more clear.