Snow checked Summit X. The expert package is basically premium shock, cast brake reservoir, adjustable ski width, adjustable limiter strap, along with a few other items designed specifically for Mountain riding. I added the upgraded silicone ski stops, Tmotion lockout ZBroz, rigid hand guards and the skidoo glove box with USB charger.  I am the original owner. It has about 1600 miles on it. 165 track. It is in great shape. I’m an older guy and used it mostly for just cruising around. And the occasional blast up the side of a mountain. It works very well for both. The machine is very clean and it’s spent all of its time in the trailer. Never hauled exposed to the road salt and always stored inside.