So I would be interested to know why this really is.....do some of these pros have secondary sponsorships that help them pick one of the other? Does SRAM have a truck that follows the races around and offer better support/tuning? Since most bike manufactures offer a model/version with either a fox or a RS....you would think that a pro could pick what they want. So do they simply like the feel of a SID over a fox? Maybe its all of those reasons.Speaking of Fox, you could count on one hand how many pros were riding Fox forks at the World Cup.