10 Ring Tao:
I see the point about too much equipment, and agree about the very fast end to almost all gun fights. The Advanced Tactical instructor told us one evening about the fact that he has had 3 autoloaders break on duty, and 3 revolvers break on duty. He also spoke of failed mags being the typical weak link. What he suggested for us, if the autoload pistol fails, drop the mag, reload with a fresh mag and rack the slide all while still on the move. If one does not have a spare, that becomes impossible. He also told us of watching Glock, Colt, and other mags dropping the bottom right out, and bullets rolling all over the floor.
For my part, I prefer say a G19C, and 2 spare mags. Then, as a back-up, a P3AT with 1 spare mag. So, I really don't carry too much if you consider the take of the instructor of drop the mag, because the mag will likely be the system's weak point.
In closing, you made one excellent point which bares reinforcing...habit, or rountine. Carry what you will, but have life down to a well-rehersed routine...conditioned response! No one has time to fumble.
Good to hear from you!
Doc2005