Actually, even on a relatively fast day, I can picture the wait for front-car seats as being tremendous, especially compared to the other seats, simply because everyone wants to ride in the front at least once. On a "traditional" coaster, like MF, or AC (Apollo's Chariot) over at BG Williamsburg, it doesn't really matter all that much, but on an inverted coaster, like Alpengeist, you literally can't see forward if you're not in the front car.
I sincerely hope that MF will have a "filler line" like AC does, wherein you get in that line, and move quicker than everyone else, but you have no control over where you sit, as the ride attendants tell you where to go. For people who don't care what car they sit in, that's a really good way to cut down on the waiting time, and the first time I rode AC, I got lucky and got put in the second car.
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All that is gold does not glitter, not all who wander are lost...
--The Lord of the Rings