If your a serious waterfowler, I sure wouldn't get a double. You wouldn't last long here hunting sea ducks. The only thing I use a double for is upland game. And thats what they were made for. I know they look cool and are reliable, but not much use for a serious duck/goose hunter.

I use a browning gold 3.5 and rem 1187 for duck. I use a bps for turkey.