Well, one thing i've never been accused of is being real smart. Never heard of the shotgun you mentioned. But in 30 some years I have seen a whole lot of birds (turkeys) put down. If you use a standard full choke, you got enough. A 20 ga.with modified has brought down tons of gobblers for us. "Like the 12ga better". Just do your part. Man it is getting that bird in close and doing your part that is the bottom line here. 12ga. mod/full, 20ga. mod/full, # 4's/6's, out to 30yards, you got meat. Don't make the mistake of trying to get real fancy in this 'gaget filled world.' Just keep it simple and use cover wisely and camo, do your home work, and have fun.
You boy's saddled this bronc, now let's see if you can ride it.
Jesus said: You who are without sin cast the first stone
.. John 8: 7