a couple of years' ago, doo had a track that was light weight, i think the cords were single ply....but it didn't hold up too well, with lugs ripping off etc....and they went back to the 2.25 camoplast.....polaris is going to use a single ply on their mountain sleds next year....i'm wondering if they're going to run into the same problems.....does anyone remember the details of doo's experience with this problem?