I remember hearing a rumor that Keith Moon, the drummer for the Who, only used ride cymbals in his usual drum set-up. I watched some old footage of a Who concert and it looked like he had three or four ride cymbals and no crash cymbals. But I later found a site that had Moon's drum arrangements on a map and it showed at least two crash cymbals and only two ride cymbals. So I guess he really did use crash cymbals after all. Can ride cymbals actually be used as crash cymbals anyway? I'd think they'd be too heavy.