basicaly just like a ski boot latch accept its a cable that wrenches the front of the ski up. i dunno, not too much more whieght but i could see it getting anoying having all that on the front of your skis
I'm sure they've product tested it and all but what would happen if you bent the nose of the ski further than the rocker like hitting the nose hard? and i keep thinking that after some wear and tear it may also start getting worn and not hold its tension and snap out of rocker....