I'm curious as to which company's coverstocks and which coverstock model seems to be long lasting, with regular cleaning of course. There's been some comments about Ebonite's covers on the One and the Big One not holding up, along with some of the Storm balls. Wanted to try the Big One, but now I'm a little nervous about buying a future paperweight. The Dynothane Soaker coverstocks seem to get a good report. Any others?