I have a Pro Carry II .45 and have 1600 rounds down range with one FTF at about 750 rounds, which is when Kimber says the recoil spring needs to be replaced. (At 800 rounds per manual). I did try a box of cheaper (PMC) ammo about that time and was using stock Kimber magazines. So I can't say for sure if the FTF was caused by A) ammo B) worn recoil spring C) magazine D) a poltergeist or E) all of these combined. It was probably a poltergeist of course, but I started using Federal American Eagle 230 gr. FMJ, bought Wilson Combate Elite Tactical Magazines, installed a Wilson Combat Flat-Wire recoil spring kit (#651) and called an exorcist. The exorcism obviously worked because my PCII has shot flawlessly since.
I have standardized on American Eagle ammo too. It's available, pretty clean and not prohibitively expensive. And it always goes bang.