I don't know much about coaster trains, but I do know that if they put the same trains on sob as they've got on Thunderhead in Dollywood, it will be an intense and much smoother ride. They are just so open and padded. Also, if these other trains you all are talking about are anything like the ones on twisted twins at KK, the ride will probably be terrible, in my opinion. Twisted twins is a slow ride as someone else said, and I was shaken so hard on some parts I haven't ridden it since. Even some of the slowest parts hurt really bad. That may have to do with the track, but sob isn't really known for its smoothness either.