The gun I use the most is a 16 Ga. SxS choked Imp. cyl. and modified. The path to obtain my favorite load/choke combinations was to pattern each barrel and each load at the distances I shoot. I also consider the dog (pointer or flusher) that I hunt behind and flushers on average get a slightly tighter pattern. To maintain the same approximate shot count and distribution, the tighter pattern gets 1/8 oz. more shot and either 1/2 or 1 size larger pellet size. One of my favorite loads that pattern cylinder has card and fiber wads and soft lead shot. I have never needed a full choke, but if in the future a full choke is needed, I'm sure that hard shot, buffer and a full shot cup will do the Job.

Jim