I have an old P220, P226, & a Sig 1911 Tac ops. They've all been great. The P220 has thousands of rounds through it. I hate you've had trouble. I've been lucky and mine have been awesome.
I have them in my 8 round Shield mags. The only thing about them I've noticed that I don't care for is when the gun is in battery, the mags are difficult to seat with 9 rounds in them. Besides that the build quality is good and they've fed perfectly for 600 rounds.
What I was thinking when I posted before was this. If you're somewhere and someone has bad intentions, that being a robbery, shooting, etc.. If they were to see someone open carry, it would stand to reason they'd take out the most immediate threat first. That's not to say oc or cc either one is...