This! I think best strategy might be to go ahead and book the three. Then after riding that priority tier one, check availability at the second park to see if desired FPP is available. If it is, confirm and cancel the existing pass. If it isn’t, enjoy the use of the other passes in the meantime while you continue to check and refresh.
Which raises one question… scenario:
Pre-booked FPP #1 - Tier 1 FP in park 1 scheduled for 10:00AM
Pre-booked FPP #2 - Tier 2 FP in park 1 scheduled for 11:00AM
Pre-booked FPP #3 - Tier 2 FP in park 1 scheduled for 12:00PM
Use Tier 1 FP scheduled at 10AM.
Get into MDE, go to book new FPP. Locate desire FPP available in park #2 for 11:30. Click confirm…
I know that if you were only holding Pre-booked FPP #2, this would not be a problem. It would prompt you with a warning that booking the new pass would, in fact, cancel the existing pass and you could proceed. However, I wonder if having pre-booked #3 would get in the way of that.