JC , as far as setting up on him on the roost, it's going to change as the season goes , early in the season your not going to be able to get real close to him because of the lack of leaves on the trees, but as the leaves start coming out the closer you can get, but it also makes him sound farther away than he really is. It's like tighten a bolt, you want to stop about a 1/4 turn before it breaks, so you really want to set-up 1 step before you bust him off the roost.
They don't like coming down hill to you, always try to set-up on a level playing field or better above him. If they run into trouble they can pitch off the hill away from the predator , if there coming down hill they have to pitch off and go over the predator.
Decoys -- You know I grew up in Alabama , so I've never used them, til now. Maybe Curt can help both of us.
Calls-- Mine favorites are a Preston Pittman Black Diamond mouth call , have killed a bunch with it! Tube call and Wingbones, I use a Morgan tube call most of the time but , Southland lost hen is a great call, Wingbones , I make my own!
Practice a tree yelp-
"two soft clucks and three soft yelps", if he answers you give him a few minutes , and hit him again, if he answers you, you probably won't need nothing else.
One other tip: DON'T MISS!