i've skied both, they are plenty stiff. And if someone like jacob wester is hitting 90+ foot jumps throwing dub 14s on them, then they are plenty stiff for the OP
The ar7's arent stiff per say. But they are great for ripping around steeps and ice. So a ski doesn't just need to be stiff to be able to rail. I love my ar7's. Just .02
I agree I rode the walls and loved them but the edge is splitting after about thirty days of riding so not the best durability but still beefy strong ski.