I wouldn't even worry about it, I would teach her how to launch more than anything, if your running any kind of real boost, even if you keep the skis down when it comes off the pad its going to break loose, Sounds like a good way to break stuff, your going to be at lower elevation= more power and force everything to work, I think I would tighten the track a little also. Just let her get the feel of it and how to vary the throttle, If the thing hooks hard enough that it would full out wheelie she will prob roll off the back anyway. Most people will go side to side also, there is now way you can keep the skis on the ground for steering unless you put a block of wood in the suspension to hold it stiff and then it wont transfer at all. So if you can get on some grass or somewhere it will hook pretty well and let her practice it will give the most advantage, teach you don't have to go full throttle off the line either, control will most likely win this race.