If you've already got solid form on rails, the kink really isn't that much different, you just have to get used to having your feet move around, but really if your form is good that shouldn't be much of a problem. The only problem kids run into sometimes is they are afraid of the kink and they don't commit and are way back, and just like almost every other thing on skis, when you don't commit you are going to take a beating.. so just go out there and throw it down and you'll be fine.
J- Irv
See it, Pop it, Throw it, Stick it