Skeet is a great skill builder, and I shoot skeet with anything I want, choked any which way, and adjust my expectations accordingly. You can still shoot great scores, whatever level that means to the individual. If I'm shooting with a game gun, its just for fun anyway. I bet tight chokes don't cost me more than a bird per box. What costs me more is the difference between gun-up and gun-down skeet (way down, international style), and gun down is more educational for game gun use anyway. It still seems skeet is the most difficult with a skeet-choked .410. I think effective pattern size of a full-choked 12 or 20, in the ranges of skeet shots (15 to 25 yards) is about the same as for a skeet-choked .410. Whatever you've got, just shoot it. If you're on you'll hit a satisfying share of them anyway. The result is more down to the shooter than it is to the choke, so don't let "inappropriate chokes" keep you off the skeet or sporting clays field with your field guns -- or trap either, heaven forbid. You can shoot straights at trap with cylinder-bored 12 gauges and modern shells, too. Even I've done it. Proper choke only matters if you're shooting tournament shotgun games, and you need to get every one you can.