I guess maybe I've been spoiled by the shooting crowd I hang with. I've probably been witness to a million rounds or mroe through competitors' 1911's and 1911 clones, and very rarely see a hiccup. Maybe it's just the fact that USPSA/IPSC shooters tend to take better care with their weapons and their loads than most shooters, but, my experience has been that, at least on a competitive level,1911's don't jam any more than anything else.

Maybe 1911's are finicky with regard to the ability to digest lots of different loads. We tend to find a good load and stick with it. Like I said before, I had problems with feeding my first time out with a new pistol, but cured the problem by adjusting the OAL of my loads from 1.25 to 1.246, and haven't had a jam since, while shooting 150+ rounds per week for 4 years.