Took a test ride yesterday on some power lines and snowmobile trails not too far from me. GF helped me adjust the preload, had to go in about 5.5 turns on the adjuster to get it correct, but there's plenty of adjustment left for luggage weight.
The shock is pretty darned amazing! If anything, the back end is better than the front now with the YZ forks. Soaks up the rocks like you would not believe!
"Keep the standard settings will be useful to learn more about the bike. One should reach a sufficient technical level, when then humbly questioning calibration of your motorcycles."