I have one 80% lower that works perfectly with one exception. For those that have done 80's, you know part of the machining is done when you get it, specifically the pocket for the bolt stop assembly. In this case, the stop does not come up high enough to catch the bolt on the last round. As far as I can tell this is either a result of the detent/spring hole not being deep enough or the slot itself that the catch rides in is too shallow. Anybody ever have this issue and how did you correct it. Looking for guidance before putting a tool to it. Thanks in advance.