Took my 1st ride yesterday. New 2022 600 Cforce.
I mainly stayed on wooded trails that 2WD handled well.
But when you hit deep sand, should you stop & drop to LO gear
when using 4WD or is okay to ride in HI as well while in 4WD?
When they dropped it off, they basically told me to ride half
throttle for 1ST 20 hours or 200 miles. Ride in LO while
doing 15 mph and under or I'll mess up the belt.
Does this all sound logical? Don't want to mess up a new machine.
Actually I bought (2).

[2015 Z Force 800 53/Trail EPS]

As long as you are going fast enough for the belt to be well engaged, high range is just fine...in or out of 4wd. If you are riding a lot of slower stuff...like 5mph and less or hauling a load..or climbing steep hills, low range is a better choice. Understanding how a CVT system works helps a lot. This may help:

https://youtu.be/v1NwF1t4Lrk

i would stop when shifting from H to L. but i would think it's ok to shift from 2wd to 4wd .
just let off the throttle while doing it..but not lock 4wd...