Replying to Which Park Ski for the Ice Coast?

I'm looking for a (preferably symmetrical) park ski, for both rails and jumps (maybe a bit more rails than jumps) - but here's the catch: I'm also a ski instructor on the East coast, so I'll need to make some decent turns on the hardpack as well. I'm 5'8-5'9, 145-150 and was looking at the Atomic Punx 173 or the Volkl Wall 177. Which of these skis will be better for what I'm looking to do?

If you have other suggestions for skis/lengths let me know as well.