Like they said, don't put your skis on your back. It's a hassle. I put a cfr rack on my sled this season and it has worked really good, it's really nice to have the bag in it and get a little bit of storage space (enough for lunch and some dry clothes)
My running boards got bent quite a bit and the little cleats that stick up also got bent down so I had no traction at all, I tried using cat tracks on my boots but it sucks cuz they always fell off. I ended up riveting some heavy duty cleats onto the running board and they work great. I put 4 on each running board, each one 6 inches behind the one in front of it.