I have never gotten good turkey patterns with Fiochi shells. If you decide to go the route of the Federal Flitecontrols make sure your choke is not designed to strip the wad ie is ported, has wad catchers, etc.

Oftentimes a 3.5" shell will have more pellets on target due to a larger number of pellets being present in the shell. Personally, I do not like the recoil, but whether it preforms well enough to shoot is up to you.