There has been an industry wide move away from the 1911 in serious training circles. At the last three classes I attended, none of the students were shooting 1911s. While I have attended more than my share of classes with a 1911 and finished without issue, I have seen plenty of shooters struggling with poorly set up guns. Those shooters would probably have had a more enjoyable time if they had brought a less troublesome pistol. When most shooters with modern pistols went to the line with 2-3 magazines of 15+ rounds, it could get really tiresome juggling 4-6 8rd magazines just to keep up with the drills.
It is easy to get caught up in the mystique and history of the 1911, but the design is over 100 years old, and we have learned a few things about designing and manufacturing since then. If you enjoy the craftsmanship of a finely built 1911 or you enjoy tinkering on your own, by all means continue to enjoy them. However, if training, shooting, and performance is your primary goal and you lack the resources, time, patience, or knowledge to keep after a 1911, then be realistic and choose something more modern. These days I spend much less time at the workbench fixing my training guns or having to wonder if the latest build or mod will work. I no longer need the 1911 as a crutch, and can now just concentrate on the performance.