I bought mine the first year they came out. I have tried, Kicks, factory, Rhino, and others, the Stardot choke backed up with the Hevi 3-1/2 #7's have consistently produced 250+ numbers. I stopped counting and worrying about it year before last. Before I got on this forum and got bit with the 300+ bug, I NEVER had a problem killing every bird I shot at with the Kicks and Win Supreme 3-1/2 #6's. IMO, you can't go wrong with that combo. Choke is fairly inexpensive and the shells can be bought at any sporting good shop. I have never tried the Mag Blend, but a buddy of mine has the Kicks choke in his 535 Tactical and shoots awesome patterns with them.
I hunt in La and Ms primarily and deep woods, swamp birds....I have found no need to have a field gun anymore. I have had to shoot a running injured bird at long distance, but that was due to my impatience on first shot. I have had several scopes, took them off...too hard to woods hunt with them...had the $80 box of Nitro shells and Rhino combo, they didnt perform any better than the combo I have now.
Dont get caught up in the 300 bug, I think its the biggest waste of time and $$...I would invest in several diffefrent boxes with a friend, or several friends, get ahold of two or three chokes, and stick with the best one. But that Tactical 835 is definately a one man turkey wreckin machine...