First upper I assembled was during one of the panics years back and iirc I couldnt find any taper pins. (or it couldve been that I didnt want to spend the extra few bucks on a reamer ). Im a little older, wiser and slightly less cheap now and the roll pins kind of bother me. I know its untraditional, or at the very least the mark of a cheap build, but is it worth it to have them replaced with taper pins? Do roll pins have any effect on accuracy, do they allow movement during recoil? Am I over thinking this?