I use a jake and two hens out in front of me about 15 yards. I try to position them as high as possible with the most view to approaching toms. One time I even stuck one on a log putting her about 3 feet more off the ground. It worked very well because two toms zig zagged through all those blow downs because they could see her and hear me and that was enough for them.

Lefty Llewellyn