Unless you are a competitive clays shooter what's the difference. Yes you might miss a few more birds in close and probably pickup a few of the longer ones. I have been shooting a 20ga with 3/4oz loads with full and extra full chokes recently. Doesn't make all that much difference and there is something especially satisfactory about nothing but dust when I do center a clay properly. Some guys recommend shooting clays or skeet with tight chokes as a way to tighten up shooting anyway.