I just nabbed a pair of them. Soo nice, awesome in the park and bumps, and handle fresh pretty well too, just not as well as a pow ski. Awesome stuff though. Go to the classifieds, and you'll see a post for Cheap Atomic Tweaks. Heres the link:
I bought the last pair of 163's from him, but he still has some 172's left. Shipping was incredibly fast, ordered on wednesday, had em mounted by friday, skied them up until yesterday. Give him a message, good price to for a kick ass ski. Good luck man.