I shoot with both barrels choked "modified" to force me (as well as the shot!) to concentrate more, plus it helps on the longer shots. It doesn't matter to me if my scores drop a bit as a) I'm competing with myself last time out, and b) if I ever competed in the club (unlikely) I'd just switch to IC on both barrels and keep a few 1-1/8 oz shells handy for the longer range shots (I shoot 1 oz reloads all the time ).
Cheers,
Roger