I'm assuming you are referring to the gadget that spins the ball to find the true balance point. Yep, I bought one last winter out of boredom. Use it most of the time. Does it help?? Don't know. My scores are better this year but so is my swing, short game, putting etc. due to using TGM as my basis of practice and playing. One suggestion if you get it----do NOT use the black marker to mark the ball while it is spinning, use a pencil. Then mark perhaps 1 inch with the marker and erase the pencil lines. I ruined a dozen ProV's that now look like range balls!