dono about the 600 but I just put 500 miles on my new 06 FST Switchback running the North Shore trail.
Stayed afloat pretty good in the fresh 20" snow with a week old 23" under that. I had to work the steering pretty hard and got stuck turning around in to tight of an area but with a little digging
out I was able to get back on top moving again.
Handling on the groomed trails was nice and managed to hit a top speed of 92 MPH on a nice straight section.
It was a little rought on me (53 years old) on the trails that needed to be groomed. I got passed by some youngster on a 1100cat in a rough section.
It seems to go through the gas pretty fast. after about 40 miles the gage starts to blink F and after 35 more miles the gage starts to blink E and starts traking milage I went another 10 miles to the parking area at Lester Park and never did run out.
Gonna bring it in for its first service check today and aske about some TSBs
Good luck with your new sled but hurry up the temp is supose to hit the mid fortys this week end