Post man dropped off a new gift today...Sumtoy choke for my 935 and site base. I carefully put it all together with the Burris FF3 and sent some pellets down range... all I can say is WOW. 20 yards, pattern was exceptional and at 40 it was the best pattern I have seen in years. I didn't get scientific (Yet) but I think the density of the pattern stayed inside of a 30" circle and the 8.5 by 11 sheet of paper I hung had more pellets than I care to count.
My son is gonna love this thing.
Thanks William!