Not to necro-post, but I shot my first match in over a year yesterday, and boy, was it useful for training! You see, my marksmanship has been improving in leaps and bounds over the last few months. It's gotten to the point where I'm happy enough that I've begun working on draws and reloads. Well, my performance showed clearly that my weakest link is definitely marksmanship. I had way too many points down on targets past 10yd, including a -8/FTN at 15yd that I'm especially fond of. I say fond, because it's been a great kick in the ass - you can bet I'm going to shift the focus of my practice back to accuracy at speed.
At least at my level of shooting, competing seems like a pretty good way to diagnose and motivate. It was great to just watch a bunch of other folks shoot, too - very educational for that alone.