You would be surprised at the amount of what I would consider "unplayable" grips that customers bring it to me to be regripped. Yesterday a guy came in with a complete set that he got for his 18th birthday.....back in 1977. They still had the original damn grips, and they were hard as a rock and slick as ice! He probably would have been better off cutting them off years ago and just playing with bare shafts!
As for Winn grips, I can't even tell you how many people bring in sets where the grips are so bad that they say they burn through a glove every round since they have to throw it out after because it is filthy and black. Or people whose bags get all black around the openings from pulling the Winn grips in and out, and since that stuff is damn near impossible to clean off they need to throw away the bag and get a new one. Stop throwing away gloves and bags and just regrip the damn clubs already!!