I need to resurface this ball and cant find the original coverstock on tracks website. Somebody took sandpaper to the cover and destroyed the paticles. I had lost all hooking ablilities. Any suggestions on how to bring it back. I`m going to try clean and dull with a green scotchbrite pad to clean it. Use a rejunivator to remove some oil. I think this ball had a little polish, particle polish.  Any help appreciated.  Mike