I was curious if you've had some experience shooting a 12ga 28" SX3 and were able give insight on choke recommendations....I'm going to try to use 3.5" hevi x shells (4's and 2's, possibly BB's) for decoying ducks and canadians, and slightly longer shots for snow geese. How does an improved cylinder and an improved modified compare to the Waterfowl 2-pack? Or, would you suggest skeet 1 or 2 over the IC? Thanks!

Sir,
Typically the waterfowl 2 pack (same as IC and Mod) for mid and long range, works very well with 2's through BB's. The long range (mod) constriction, Invector Plus, which your gun uses, with a quality shell normally will give patterns in the high 70's low 80 percentage range (extra full patterns) and not uncommon for this choke to give high 80's.
The 4's may take a IMP mod constriction to reach these numbers but you will have to pattern and see. I would try them with the standard waterfowl chokes in the two pack before doing anything else.
George Trulock