I'm getting ready to mothball my skis for the summer--except for the pair I take to mogul camp. As I was inspecting/fondling my skis and already anticipating next season, I noticed some rust spots on 1 pair of my skis. The skis are quite new and have only been skied on 5 times or so. How should I treat this rust and is this typical? I typically try to wipe down my skis and I take good care of them...just wondering if there something that I am doing or not doing that is contributing to this.