I first heard (and saw) folks using these lightweight ski mountaineering boots to tackle big alpine routes when I was in Chamonix a few years ago. Here is a photo from a climb and descent of the Couturier Couloir on the Aiguille Verte (visit Jon Griffith's website - Alpine Exposures - for the full story). I have to tell you I am sold on these boots, comfortable, fit crampons well, hike well, and ski well. The only knock in the blogosphere has been their durability, but mine are doing well in that department.
