BTW, its the 4" cutting sircle one that I have.

Gruesome, perhaps, but if you hit the neck it should be much more humane. I only know personally 1 turkey bowhunter and he uses regular ol broadheads. He shot and lost 2 birds this fall. I tried telling him about this broadhead and showed him the video, not sure if he will try it or not. But I will be, so long as I cant get practiced with it which I am still trying to figure out how the heck to do that without damaging a bunch of blades.