RE: Gobbler Guillotine
I've watched the video on their site, and honestly it seems like a gimmick to me. Still has a propensity to wound--for instance, that one farm-raised turkey that got it's throat cut with the shot that barely connected. If that had been a wild bird, most likely they would have never known that it was hit--it wouldn't have just hung around until it bled out. Be a devil to find a quiver that they would fit in too!
No idea if a 40# bow would be enough with those heads--40# would be plenty with a regular 2, 3, or 4 blade though.
Chad