Mean Streak rollbacks are an annual affair, but I don't think Magnum has rolled back in many, many years, perhaps not even since the re-profile circa '90. It was in the pretzel, if I remember correctly. I actually worked at my local Ames with the TL that following winter!
Mean Streak tends to rollback following the third hill, right there by the midway, usually because they squeeze too hard on the drop trims.
Raptor has rolled back once, from what I understand, not making it up the steep helix to the mid-course brake. Again, I don't know that it has officially happened, but it's what I'm told. Apparently that's why they won't run Raptor in strong wind out of a particular direction.
Gemini has been known to rollback about once a year, not making it up the second hill.
Millennium Force rolled back before the third hill on an empty train (duh) as did Superman at Darien Lake, in the turn between the first drop and second hill (empty, again).
New woodies are notorious for not making it on their first run. I know Villain didn't make it, apparently from something dragging, because that thing doesn't let go ordinarily, start to finish!
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Jeff
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