Well, here's my 2 cents for what it's worth. I'm in basically the same position. I'm about to join my local gun club and plan to do a good bit of clay shooting. However, I also want to have a gun available for hunting snow geese and possibly some ducks, so I want a 3" chamber. Thus I eliminated the 1100. I love the feel of the 391 and probably will go with it. Looked at the 11-87, but still prefer the 391.
Also, my daughter is just about big enough to handle the 391 due to it's smaller forearm and slightly lesser weight, so that's another consideration.
Also, my daughter is just about big enough to handle the 391 due to it's smaller forearm and slightly lesser weight, so that's another consideration.