I also used the shim stock to make two washers that are .005" thick. I placed one on each side of the trigger to remove the sidee to side slop. The trigger housing is made from bent sheet metal, so the amount of washers may differ. The sides of the housing weren't totally parallel, the amount of clearance varied from .011" to .014" so I used a total of .010" so that there wouldn't be any binding.