You assume correctly. MMRR is your best bet if not purchasing ILL$. We purchased it and also had SDD booked via LL. So we hit ToT first and it was about a 7 minute wait. Rocking Rollercoaster was about the same. Both posted as 20 minutes but it was 7 minutes actual.
Thanks. I don't think we'll be getting the MMRR ILL, but we might do RotR. We definitely don't want to pay for both.