I've tried it, hasn't helped me that much...
I think for next year I'm going to use Jake's routine.
Pick up a gun the night before a match and practice a few reloads, dry fire at the TV for 5 minutes, reload enough ammo for the next days match, drink myself into oblivion (OK I got that part down), show up 5 minutes before the shooters meeting.
What I save on ammo costs I can spend on alcohol and save myself all that time on the range, not to mention the angst and stress.
I like this idea. Jake is nothing less than a visionary.