I have always used leather on my ps 85, the last 5 years with an overgrip, but i have decided to try to go back to only leather(partly because of gripsize). I need some tips on how to clean them, i have about 10 and some are very dirty. And some suggestions on how to keep them "dry" at the end of a match (i always felt they became slippery when sweating a lot). Could sawdust ala Lendl be something? or talkumpowder? Thanks.