yo i'm looking for some help. I built a 3m rail during the summer, its sweet, i got it welded on top of a crowd control barrier. Anyway my problem i went to hit it only to find my skis dont slide on it and i can only guess its because its made of aluminuim. It didnt seem like a problem when i made it and its super strong. Can anyone think of anything i can put over it so it slides and my edges dont dig in? Cheers