Do they measure a child at every ride that they might be borderline at? If so, is there a way to figure this out before waiting in line? Or do they have something at the gate where kids can get measured once? My son is 42" with shoes on. I want to make sure that he can go on rides before we wait for them. Just because I measure him at 42", doesn't mean they will. (I'm not about to use different shoes or argue it if he's measured shorter).