crandog, think a little bit about that. That arrow is turning; four blades do not guarantee that even two of them will hit. It's like the lottery. How is the head aligned when it hits the bird....providing you can even hit the bird in the head or neck. Now....look at those heads again, there is much more space between the blades than on the blades. Common sense will tell you that it is just a easy to wound a bird with those heads, as kill one. I don't like those odds when an animals life is on the line.