I shoot 30" tubes. Have tried 32'' barrels, but found them to be a little too much iron to sling in the models of gun that I like. I am slow to that 2nd target in doubles, and that makes scoring well, spotty at best. Having said that, I find if I spend a little time shooting in the Oregon Doubles Classic events, My scores definitely improve. Lets face it doubles targets come out of the trap in pretty much the same place most of the time. Practice will help a lot. Having said that, out here in the West, I would venture to say that 32" OU barells out number anything else here. "Try both and find what You like". I got that advice from Joel Etchen, and I am glad that I took it. You may want to try before You buy.