3.0 - 6.1 meters taller
I would imagine doing so would add a whole lot more to the development costs. It may be easy to say just add 15 vertical feet but that means a longer track and chain lift mechanism (think of a right angle triangle) probably greater supports to sustain the added forces, each element would have to be modified to allow for a safe ride experience, etc.... either way, I think it is a great coaster. One that you can marathon and not feel like you've been tossed in a sac and beaten with billiard balls. More so, a coaster you can introduce young enthusiasts to as they build the tolerance to try the boy boys.