I'm interested in this also. We still don't know if we are going to buy an AP. We want to order tickets from
Undercover Tourist but were waiting until we decided what works best for us.
So basically, once we use the ticket we can upgrade at the current value at Disney parks? Can this be done on the same day you use the ticket? Also, wouldn't a 10 day non-expiring from Undercover Tourist actually be more than a
DVC Annual Pass? Would they credit the amount?