....So far, the legitimate complaints are to check extractor and firing pin stop and 1911's seem sensitive to magazines.....
That isn't really the problem. It is true that we often suggest trying a different magazine because it's a cheap and easy experiment that might pay off, but the reasons for that are not that simple. If a given 1911 will not function with the current Colt-spec magazine, there is something out of spec with the gun or with the ammo. Or the mag is damaged or defective (therefore, not actually Colt-spec). In fact, it is known (and I have seen it) that the Colt-spec mag will often "cure" a 1911 that is not quite in spec.
The whole mag sensitivity thing boils down to out-of-spec guns and/or people trying to make the 1911 do things that it wasn't designed to do. For instance, the wadcutter lips with an early release will make some 1911's choke on HP. But those mags were never part of the original design, and they weren't intended for defensive use when they came about - they were for gaming.
How many different magazine designs does a Glock have?
