I have a 216 RB two barrelled set - 16 and 20. I bought with the thought that the 16 would be upland bored .005 and .010 and the 20 would be for waterfowl .010 and .015 (steel 16 is hard to find). At the time I bought, I made the investment in a few cases of 16 tungsten matrix for duck shooting, so I haven't used the 20 barrel at all. I also made the decision that the oil finish was not particularly marsh or rain friendly, so I only take it out on opening weekend when the weather is good. The open bores are not an issue for teal shooting. I have been very happy with the set chokes and don't feel the need for anything else - I always use my Citori for wet days or late season ducks. If I were doing things over, I would forget about the second barrel and put the additional money into wood (I did order the seven pin action as an upgrade at the suggestion of Harry Marx) or a hardcase.
