I have 2 SX2's. a Browning Gold and a BPS all in 3-1/2". Would not own a waterfowl weapon NOT in 3-1/2". I would rather have it and not need it then want it and not have it. I shoot the SBE II at work and they are great guns, but as others have said, only 3". If I have to pick one over tha other for what I have and use, I give them all a good break in over the season just so none feel left out!!!!!!

The most important thing is, handle all that you can get your hands on and find the one that fits the best and you can afford and not just because someone said it can kill geese over at 1000yds.