I should add that we are so spoiled by FOTL, that even when it is busy, we fidget at the 15 minute waits, as most of the time, it is shorter.
For instance, Thanksgiving day 2007. Hulk was at 60 minutes, walk-on with FOTL. Spidey was at 45 minutes, I think we waited 3 minutes. MIB was at 30 -45 minutes. I think we rode it 5 or 6 times in 45 minutes. It did go down once and it was still only 15 minutes while they replaced a car on the track. Mummy was at 45 minutes and we waited about 5.
And if you go when the park opens, then it really is walk-on. Again, early Thanksgiving morning, we hit Studios first thing in the morning. First up was Mummy. Not only was it the epitome of FOTL, the first three rides, we had the car (which seats 16) completely to ourselves.