I have K2 Explorers with the Marker rail mount bindings , skied on 20 days or so . The binding is developing slop on the rail. A friend had 2 year old Outlaws that had the same problem , after a trip to the K2 offices and some insisting they replaced the skis. Has anyone else had this problem? I think this system is flawed and K2 knows it , they made some changes to the model I have but the problem persists. If you have these bindings try grabbing the toe piece and wiggle it side to side , you will likely have some slop.