My P3 seems to work fine. It doesn't have any outstanding wear spots that I've noticed, it seems to function well, but I still wonder if I should tinker with it. The only complaint I have with it is that when I'm cocking the gun (to put the first round into the chamber), it almost always hesitates for 1-2 seconds to snap forward. It just makes me wonder. It doesn't have any jamming while firing at the range and the only FTE I've seen was when my brother-n-law hit the eject mag button while he was shooting. Do I have anything to worry about? Should I polish the feed ramp, etc? I keep reading about it, but I don't know if it's something I should mess with. To tinker or not to tinker.... :-?