Matt1080, you actually get "too high for supports" notices on those? I think the Thrust Air has that 59 mark from ground not because it's too high, but because it only has certain height elements. So if you start at 6 you can go to 61, but if you start at 7, you can only go to 58 or something...it's because of the way the hill is made, not because of the limitations of the coaster. The only time there's a restriction on the ride type is with a "too high for supports" notice...not a "too high" notice.
Jman