Keith, if you don't shoot well at your home range, there could be something you're just missing. Or, you pay more attention at a match with others watching. Obstacles on or near the range will play hell with conditions. Ditches, berms, trap houses, tree lines, other buildings, and anything else that can cause a swirl deserves a flag or two nearby. Something else to think about, sometimes you just get caught with a change the flags haven't reacted to yet. Don't forget to factor in that odd channel of wind that goes between you flags and moves your bullet a couple of rings. Something to be said for watching your competitor's flags and never drawing the end bench.
Ken