GRR is disconnected from the rest of the FP system in CA, so you can grab a GRR FP plus another one. Screamin might be a good one, if you don't want to wait around to FP Soarin' first thing.
So if you decided to ride TSMM later in the day and avoid the first rush... you could go into CA at 9:50 or so... wait at rope drop, head for GRR and FP it, keeping going around and head for Maliboomer or Screamin' and FP it, and then keep going and hit Tot while it's still early. If you're that kind of ride person. (I'm still trying to convince DD13 to go on ToT; so far she's adamant that there's no way)