Thought just came to mind with above post, do you HAVE to switch adults with RS? If you get a RS ticket can the same adult ride again? Sounds like the adult could show up with a young child and non-rider, get a RS ticket and essentially wait in line and then go through the FP line with the RS ticket and get to ride twice with only waiting once.
Seems very unethical to me and don't think I would do it but curiosity has struck. What prevents people from taking advantage of this system?