I must chime in on this topic! My wife has had her UI for almost 3 years, and she bowls 3 nights a week. I can't get her to put it down for the most part. With league play, tournament, and open play, this ball easily has over 1,000 games on it. I put it in the dishwasher at least once a month, clean it with Track Clean n Dull, hit it with a grey pad, or 500 Abralon, and it STILL outhooks anything I've got in my bag!! If you keep it clean, this has got to be the best coverstock around! IMO!!!