I have an 08 XP and rode all last year with the sway bar. This year I took it off, I love the sled without it in the mountains, however, we have alot of trail between camp and the good riding and I don't like to waste time on the trail. I definatley would go with the quick discos if you like to rip on the trail and then ride the mountains. If you take your time on the trail, or don't have much trail, then take it out altogether.