^yeah, 186 reno jibs came to mind. They should be sick.. another thing he could do is get a ski like shoguns. 191 shoguns still have full effective edge when rolled over, but won't catch up on take offs like a cambered(shoguns are flat underfoot and low profile rocker) 191 would. won't be too soft either.
I really like my obSETHeds. I use them in the park a fair bit and haven't had any issues with them at all, theres some minor things like it's slightly harder to spin with and other stuff but overall it's a really nice ski. I think he might also want to check out the '10 extremes, this is because all of the K2 skis that I've measured are about 5 cms longer than they claim. I'm also about 6'7.5 btw.