DYNO298,
I have an ACE and I've experimented with it by dulling the surface. It definitely tames the snap reaction of the ball. But for my style of play, which is throwing it with alot of speed, I could not get the ball to store enough energy to recover in the backend. I had to shine it back up (I sanded it to 800 grit, then put Storm Xtra Shine) to get the best reaction. I only use the ball for medium-heavy to medium conditions. Slides to much in Heavy Oil.
dpunky