No disrespect meant, and I know how this could appear coming from someone who makes a small game head so take it as a well meaning question and nothing more. But wherein lies the killing power? In my opinion a small game head should have blunt force trauma or cutting blades or preferably both. Is there a way you could add a nut, or a washer or something behind the screw to jack up the blunt portion? I would think that would be better for small game. Again, not trying to put it down, I'm all for homemade heads. I just think that on live animals you'd be better off if you could add some knock down power.