I bought these and mounted them on my K2's with the intention of having a great all mountain set up. These bindings were a waste of money. They are constantly loosening up and I have to crank them down every time I ski. They were supposed to be the mid-stiff but not as nearly as much as advertised. For the cherry on the sundae I was skiing at Keystone and my binding loosened up again allowing my boot to pop out and off my ski goes, on a adventure never to be seem from again. Try Hammerheads or G3's much better deal.