My wife and I now have identical twin 570 T EPS atv’s. When I say twins, they even have the same build date on them. The dealer I bought mine from changed out the clutch weights for the high altitude set, as part of their machine setup, while my wife’s dealer didn’t do the high altitude setup. Since our machines are twins, all the way down to the same tire/wheel combination, it will be interesting to see if the different clutch weights actually make a noticeable difference.