I am not posting this as a 1911 vs Glock thread, so don't take it as such. Over the last year I have been observing the failures at the local IDPA matches along with everyone else. Nothing scientific, just casual. Sometimes I will go weeks without shooting a match, and sometimes time will allow me to get 3 or 4 in a month.
With the exception of an occasional sig, beretta, or yesterday some new xd's, everyone shoots glocks or 1911 style pistols. I always make a mental note when a shooter has a gun(not shooter) malfunction and most of the time the glocks win the failures race. Yesterday however there was only one malfunctioning 1911 that didn't run right all day.
Why no glock failures yesterday? Nationals were this weekend and the guys that fiddle with their glocks to make them sweeter shooters were gone. Most of the glock shooters yesterday I would bet are pure stock.
Just my $.02