Confirmation bias is a possible explanation. It can get worse with experience and training with like minded people. Do you count 1911 failures as meaningful and Glock failures as a fluke?
What % of students in your classes use 1911s? If it is very low, you might subconsciously give more weight to any failures of the "special" guns.
Also, do your students clean their guns after a certain number of rounds?
Yes, I have considered that.. this year, I am documenting the student numbers and types of guns as methodically as my ADHD will allow so I can "quintuple" check myself.
So far, we're up to six 1911s in all types of courses (except conference seminars, unfortunately, I didn't get a chance to do a formal count at the NES Conference last month). I have 5 of them with documented mechanical failures, including any that were involved in a 2 day course.
No, students don't clean their guns unless their gun dictates that they need to.
In the past, less than 10% of 1911's have made it through a 2 day course without mechanical failures. The numbers for the modern striker fired guns that we recommend (XDs, non-4th-gen-Glocks and M&Ps) are in excess of 80%.
I think the point several of you are missing is that the issue isn't that you will only need a few rounds to get through a defensive situation (If that is your argument, carry a revolver... it is much more reliable than any semi-auto). The point is that if the gun is more prone to failure under any plausible condition (dry, hot, dirty, unsupported platform, weak ammo, dirty ammo, etc, etc), then it is a
less reliable gun. Given that everyone has the choice to pick their own defensive gun, it seems silly to pick one that is demonstrably less reliable. Add the fact that you could have a catastrophic user error that prevents the gun from operating AT ALL (leaving the safety on) and it really seems like a no-brainer to me. Yet, this thread is being repeated all over the internet... full of the same rationalizations, dismissals and bravado. That is what we are trying to stop... at least for the critically thinking new gun owner... it is too late for some.
If we continue to tolerate the Church of the 1911, too many new guns owners will Google "best defensive firearm" and potentially stumble into the legions of collectors, enthusiasts, throwbacks and automatons extolling the virtues of an outdated system that is inferior in every way except possibly precision capability (due to the short crisp trigger). With a very little education in the type of precision requirements plausibly needed in defensive situations and the capabilities of Modern Striker Fired guns, they can then come to the conclusion that the one small potential advantage is far out-shined by the known limitations and complexities of the 1911 system. All it takes is exposure to the truth and the modern advantages will speak for themselves.
How many 15 year old kids about to get their driver's licenses are looking at Amish Folks and thinking "Man, they really have their crap together! I can't wait to get my buggy!!"
-RJP