Just picked up a new 835 with 24" barrel and factory turkey choke for my son in law. I have BOXES of hevi 6's 3.5 inch shells for him that I don't use any more. He will never have to buy shells again.... I see conflicting information on whether he can use the factory choke with the hevi shot. I was thinking of getting a carlsons tss choke since they seem reasonably priced, but does anyone have any other suggestions for the hevi 6 3.5" loads specifically? Thanks