Moment Bibbys all the way. Don't go reverse sidecut, it's not worth it. You get plenty of powder performance out of a rockered, normal sidecut ski. The Bibby's have a more solid flex than the hellbents so cliffs will be more enjoyable. Plus, the topsheets on them are really solid (say goodbye to chipping).
You might also want to look into the Praxis MTN Jib or some of their other skis if you don't mind spending the money.
Line Ep Pros.....
it says they are made for a good skier, stomp 7's and make high speed Gs turns switch.
Sounds perfect for you. 08's are on the same site for 499 i believe.