I have the ar7's and I ski east coast and there's honestly nothing bad I can say about them. I haven't skied the moment skis, but skiing ice is great with the ar7's, no chatter, firm edge, don't feel washed out at all once you get on edge. But at the same time if your just messing around on flat or in the park, they flex nice and smoothly. They're suuuuuper durable with armada quality, and I mean if Jacob wester hits 70+ foot jumps with them, I think we can officially establish they're stiff enough for that. Overall, great ski.