I haven't hunted ducks in years. I just picked up a new Remington 870 and it has 4 chokes with it. Honestly, I don't know what I last used (it was a fixed choke barrel) and it probably wouldn't matter anyway, since it's been awhile since I last hunted. This new gun comes with 4 different screw in chokes. This is a new option for me.

What do you use, or would you suggest, for a duck hunting choke?