I don't know that it's really comparable to any other skis flex. It felt slightly stiffer than an AR5, but was much smoother to ski. The ones I rode were set a little further back than I would have liked. But they were still super fun. I know it got one of the highest scores in the boost mag ski test I did, which should come out sometime in september. I'm getting a pair of these and the P4, which is also super fun.
As for the durability, I've watched Jon Hartman ride these all season, and he isn't the type to take care of his skis. He's done urban, rode these through parking lots, etc, and they still look great.
Jibij Pro Shop
2714 28th St.
Boulder, CO 80301