I bought a spin tester yesterday. It spun as well as the others on several shafts. Possibly there is a weight distribution problem in the ferrule, I don' t know. I' m going to shoot it some more this afternoon and see if everything repeats the pattern. If it does, I' ll give Rocky Mtn a call. I really like the heads from a design standpoint. I went ahead and bought another pack, so I will have a full quiver, no matter what happens with that head.

What is the acceptable limit for head " wobble?" Is 1/16" acceptable? I' m going to use some paper and take some measurements to see what these heads look like.