The first things he says he skis in park are BIG jumps and kickers... He says he does boxes and rails, but not that he is a jibber(which a jibber normally points out).
So look for a ski probably jump oriented, maby with enough play to jib around if you wanted to.
These seem to be some of the top jump oriented skis:
Armada Pipe Cleaners(I own 181s(could have gone 176, I think I will end up prefering the high 170s in park jump skis even thoguh I am 6'1", but most people here like the longest. I still love them a ton, they spin easily and carve incredibly well, super stable, and truely are faster than most skis(faster than my 175 GS skis, I had thought that 3/4 of that was a sales pitch but it's not). When they break in I am sure buttery will work fine, they aren't the stiffest ski out there, but we don't all need Extremes. BTW, Armada measure park skis like K2 measure skis, 181 PCs are 181 tip to tip, 183.5 along the base. Mount -2 to -2.5, even if you ski switch alot.
Bluehouse MR. Bamboo core=stable and poppy. Super light, wouldn't be a problem to jib if you wanted to. Fatter than most jump park skis, but they are so light that most of what the width will do is add some stability.
K2 Extreme: STIFF. Just a bit on the heavier side, but a good ski. Stiff.
Head JO Pro: cap construction=super light. Cap skis MUST be made perfectly(or they don't carve well), and apparently these are. Doesn't have the edge problems(at least in recent models) that some cap skis do. Haven't skied them, but I will for sure try to demo this coming year.
Moment-? Reno Jib is the main park ski which is widely loved, but the Reno Freebird also looks sick to me and might make an amazing jump ski(You will have to find out reco mount though, since you can't mount a ski made to be at -7 at -2). Look into them-
Personally, I see no reason for symmetrical skis and true center mounts, especially for jumps and pipe. PCs are 1cm directional, they ski switch amazingly, and that is at -2. Some symmetrical skis are made great though, so... Volkl Wall could be good, and Iggy's ON3P Blue Steel is probably real sick(bamboo =D ) and stiff enough for jumps. Cheap for a new 2010 ski, too($350). Good luck!