We've allowed auto shooters to shoot at club level for a few years now. We simply give them their own division, we use open and limited/production. Easier here as you can only have 10 rounds anyway. Because they have their own division we don't change the scoring for them in any way, they are competing against themselves, and they can always compare scores later if they wish. The only proviso we have, is since the club has an Icore champion each year, the rule is you cannot win Icore Club Champ with an auto. We get anywhere between 15 to 35-40 shooters a match now. Spread is about 1/2 and 1/2.