Zeke... you've done well with your 1911's. I bought 14 or so this past year and had occasional feeding issues, or slide fail to lock back issues, or last round ride over issues with 1 of two Springfields, 1 of four Kimbers, and two of eight Colts (they were both Commanders). Some of the issues were worked out, extractor re-tensioned, etc. and a couple of the guns I just sold. All in all, though, my 1911's have run very well.
BUT, if I get even ONE feed stoppage or ejection stoppage for any reason whatsoever with a gun, I'm not a happy camper and I won't trust it again until I've gone hundreds more rounds without ANY issues.
Are you saying that with your eight 1911's, that you have never had a stoppage of ANY kind with FMJ and JHP ammo? If so, I'd say that's unusual for 1911's.
My new Silver Chrome BHP .40 has gone about 400 rounds so far with a wide variety of ammo (Gold Dot JHP, CorBon JHP, SXT JHP, WW JHP, AE FMJ, etc.) and PERFECT, FLAWLESS functioning. I'm really pleased with it.