I have read alot , and I have got a lot of good info, but sould I feel the clicks when I turn the adjustment or is my shock junk.
The stock shock is a spring receptacle that claims to also be a damper.
The stock spring is mush, but if you preload too much then the top out is like a rock.
2 - 4 positions stiffer from start for the preload collar, I'd go with 3.
I gave up on the rebound adjuster, and two much really makes it bad.
The damper seemed to have lots of stiction to me.
Midpoint on the damper screw, then try 1/8 turns and try each 1/8, but don't go to far with that screw.
# 1 change is a real rear shock.
If you can't do the shock, go for a spring.
Stock is less than 900 # / inch, and nothing less than 1000 should ever go on a 919, even with a zero weight rider.