I know what you talking about as I have been thinking about doing the same thing rather than buying one. Thought that once I can do one, I can do others for my shooting buddies. So, where the sharp point is one the bolt stop, you want to put a slight radius, correct? I notice that the Volquarzen as different from the Power Custom. You know that most folks can live with the factory bolt stop and it's operation. Good info and I thank you.
Be Safe !!!