I have been skiing in the backcountry for over 30 years, and this seems to be the best advancement in AT bindings to date. I have been skiing Fritschi's for several years until now. I am 5ft 11in and 200lb, expert skier. I have these mounted on a pair of BD Havoc skis with Garmont G-Ride boots. I could not be happier, the whole package is awesome. The bindings are easy to adjust with a ski pole. The two stage heel riser is easy to use and works (doesn't slip out of place). The pivot point is perfect for climbing steep hills. I have the DIN set at 8 at both points. After hitting a hidden wind blown chunk under the powder, my tip stuck in and I head planted. My right ski that took a dive released like it should have. I was concerned about no toe release but the people at Silvretta got it right. The perfect combination of superb uphill perfomance, light weight, and maximum safety on the descent. I went with a size medium and use a boot that is 27 mondo sizing (size 10 USA shoe). Bomber gear.