I agree, but the shop already did the shim and I picked up the engine and did not think about it until I got home. Would prefer not to have to call them and potentially argue about whether or not they made a mistake and drag then engine back down there again. If it is a major concern, then it is probably worth it but if only a minor concern and something that might only create an issue far in the future then might just keep it as-is. Thoughts?