I have a 2011 800 Rush Retro Pro R. The sled is strong on power and no problems with it in 800 miles except for it darts like a snake going down the trail. I have talked to the dealer about it several times, adjusted the suspension. Next step is to put dual carbides on it but the dealer is advising against it. It definitely has terrain domination in every direction! Has anyone else had this experience, if so any suggestions on how to correct it.