Basic marksmanship firt and foremost.
Reloads second.After that, then speed.
-madogre
Right, forgot about the reloads. My IDPA partner had us practicing that, doing what I believe is called "El Presidente" with 3 targets, gun and all mags loaded with 2 rounds each. Engage T1 through T3 with 2 shots each from not very far away.
I feel the best thing I get out of it after marksmanship training/practice, is "muscle memory". Doing things over and over so that the mechanics of each thing, aiming, shooting, reloading, getting to cover, all that becomes doable without needing much conscious thought. I've read Army trainers talk about building "muscle memory" like this in repeated training exercises to teach soldiers how to respond immediately and correctly to various combat situations like ambushes. If you practice reacting properly, it won't take nearly so much thought to do it correctly on demand because your body will already know what it feels like, almost instinctively, to perform certain actions. I find as I get more familiar with certain IDPA situations that moving and shooting the stage does get faster for me, without consciously hurrying. (Unlike my first match or two where just a tiny bit of time pressure from the timer made me hurry up and accuracy went all to hell, even on easy shots).
I know IDPA is still a game and thus has to have certain artificial rules for safety and other reasons, but it's still fun and at least builds these kinds of things much better than the simple paper punching which is all many ranges can safely allow members to shoot.

