Just an idea, but you might try setting up a target where there is no chance whatsoever if hitting a 12 (or 10 even). Make sure the target is staked down good enough that it can't be moved, leaned, etc. and the obstruction can't either. After the cards are turned in, announce that it was done on purpose, just to see how honest folks would be. Probably wouldn't be a good idea to announce who cheated, but it might make them think twice about doing it again--at least you would know who to keep an eye on. Pride and ego mean everything to some folks, and some rather try to steal respect rather than earn it. Taking them down a notch might help jar them back to reality. Also, mistakes can be made--I know I have goofed before and marked a score on the wrong number, and just filled it in on the next target. Not likely that happened 6 times in the same place on the card, but maybe a couple of the shooters just goofed.

Chad

Long Bows Rule!