Thanks for the input. Oscar I didn't even think that just because a tire says a size means that's the size, so great point. I've been kicking around the Idea of getting a different brand with this next set, I just worry about having to make a lot of changes to setup with little time at a new track. And 3 races on one set of tires is too many. I think it would be foolish to try for a 4th. What to do, what to do?