I believe I have finally figured this ball out. When I first got the ball it reacted fine. The cover was left oob at first. Then I started to have issues with it not finishing. ok, so I changed the cover to a lower grit. Seamed to work ok , but still not great. So I put it away.  I never really tried using this ball as a down and in - up the 5 board ball, because I have other balls in my arsenal that I used instead. So I didn't really use it very much, disappointed in it. So I tried some experiments with down and in, and to my surprise, that is how this ball shines, at least for me. I used a burg scotch brite to dull the cover. I then did put some polish on it. So if you are having some issues with this ball, try the first arrow line, you might just be surprised. I use it more now then I ever used to.