Quote Originally Posted by jkv45 View Post
What is the disadvantage of using a washer between the base of the BAS and the bolt to offset the additional thickness of the pieces instead of cutting it?

Thanks.
Not sure I follow. What washer are you referring to? The BAS is the screw. (BAS = Bolt Assembly Screw). What other screw is the reference? The BAS must be shortened, otherwise the extra length of the plate & BB would preload the firing pin spring WAY to much! Possibly even bind the coils.