I used these bindings on a pair of Rossi S7's for the entire season in La Grave, France last year...110 days in all conditions from ice to deep, deep powder. manky slop, wind blown crust, slush, 50 deg. no-fall faces (lock 'em down in serious situations), and everything imaginable. they never failed me. easy for touring when needed, but not too many times as the s7's are a bit heavy, but the weight of the FT's helped make it reasonable. trained for the Derby on these skis and bindings, but raced on alpine bindings and stiff boards because of the high speeds.
I am an aggressive skier and not light (6+ feet tall and 190 lbs). These are solid and do not release inappropriately which was my fear with such a light binding. I have them mounted on K2 Coombacks, with BD Quadrant boots. Climbing mode is easy. They are easy to get in and out of, and I think the perfect binding for ski mountaineering (I have used AT setups dating back to the 1980s, Salewa,Silvretta, Frischi; these are the best).