i dont htink they can. but you can just ski them and if the edges fall off, use those skis as your rail skis buy new skis and use them for everything but rails, that might prevent the buying skis everyyear,
its hit or miss man. My mike nicks have had cracks for 2 years, but the edges are so burley that they dont rip our or anything, and i do enough rails. Ull be fine im sure