Not sure if this should be in here of ski equipment, but whatever. I just pulled my skis out of sotrage for the season, taking the storage wax off them and I noticed a small patch of rust (maybe 1.5 or 2cm) on one of the edges, how do I get rid of it without taking it into a shop to get the edges tuned? would it be alirght to just rub it off with sandpaper?