I was watching a YouTube video of a guy shooting USPSA matches and he shot 5 or 6 mags per stage and was moving all over the range. The ground all around him was littered with 45 or 40 or whatever size empties. Do you guys retrieve your own casings after each stage or after the match? I reload and am pretty anal about getting my brass back. How do you do it? Also I thought that those matches were awesome. Would love to try it.