Nine Lifes are the problem ski(and pricepoint, yet everybody seems so surprised that a price point ski breaks.. also 09 Watch Lifes('10s are completely different)). The other skis have been doing good. I've skied my One Lifes over lots of rocks, fallen trees, bushes, anything else along those lines and some rails, and now this weekend skied them at about 15-20 mph right onto a cement road with gravel(which ripped one off after a few seconds with the din set at 12), and all they have is some edge scratches. They're incredibly durable.