travis, sounds like you did alot of work to solve a simple problem. unlike rifle round, where the expander ball doesn't really open up the case mouth. on pistol dies, the expander ball expands the case mouth to hold the bullet. if your shaving lead of your bullets, your belling die needs to be adjusted. screw the expander down a couple turns at a time, until you've expanded the case enough to hold the bullet and you can see a very small gap between the case mouth and the bullet. you should not have to deburr new pistol brass. also if the lock ring on your dies don't have a set screw, get the one from RCBS. with those once you have your dies set, tighten the set screw, and you won't lose your adjustment when you change dies.