If your talking about the backbored or overbored barrel buckshot will not hurt those. As for turkey extra full choke tubes I think if you look most of them say not to shoot shot much bigger than #2 (actual size varies depending on who made it). I would bet that a extra full choke would most likely blow you pattern. You will probably get your tightest patterns with a modified or improved modified. I would grab a couple of boxes of your favorite buck shot and some carbord and give it a try. I would try a few shot through each of your choke tube and see what shoot best.
Everyone has different ideas about trophy pictures. Looks around and you will see "long armers," "set behinders," "big cheesers," and "blood covered brutes." I have a few tips to keep your trophy pictures from being laughers or worse yet just plain gross.
#1 Clean it up. Try to avoid bullet holes, gut pile, mass amounts of blood, and the tongue sticking out. You don't want your big buck to look like a angry 1st grader with his tongue out or a MMA fighter during the 3 round.
#2 Long arming...