Originally Posted by
i1justin
alot of times it is to actually make it smoother, from manufacturing rings can often have little imperfections like small dimples etc.. Sanding them down can make the entire ring a level and flat surface meaning the balls roll more freely.
Hahaaaa! Thanks bud. My buddy has it backwards then. He sanded his down with a heavy grit because he was told they need to grab better haha. Thanks for the heads up and ill be letting him know.