I have had the (dis)pleasure of a rollback on Maverick. She doesn't usually go backwards but on rare occasions, it happens. It was on the launch hill where we had a failure to launch, came to a stop, rolled back most of the way, just enough to hit the drive wheels. The LSM's were still acting as brakes as the wheels struggled to pull us back. Not fun, and time-consuming. Sigh. Nowhere near as awesome as a TTD rollback.
On closing day, I had a Maverick spieler give us the specs of Top Thrill Dragster. Passing by him, I exclaimed my excitement for Top Thrill Maverick, which he repeated back at me. I thought it was funny...