Does anyone else have trouble sanding down a Decelerator pad? I have it down to just about where I want it and I have used different grades of sandpaper, but nothing seems to come off. It just turns rough looking and chafed. I used a sander to get it close to where I want it but the final touches are difficult. Anyone else have this problem? I didn't have this problem with the orange pad I got from Galazan's. Thanks.