I'd go with the the screw in chokes....cylinder bore is practically useless in the real world of hunting.
Whoops. I must be doing it wrong...
It all depends on what one is gunning for and where. Wildfowlers, turkey hunters and deer hunters using BK need choke while small bird brush hunters or deer hunters using slugs don't need choke. I found the best way is to have single barrel gun with "choke selector bulb" at the end. I know most think those are ugly and can not be used in two barrel guns, but they do eliminate need for choke tubes and spare barrels.
