Need a couple of pics if you wouldn't mind of your rear shock towers to see where the stops are set? I don't think mine are set correctly? ?

[2015 Z Force 800 53/Trail EPS]

You mean the distance between the lock nut for the preload and the shock end...ie the top of the threads?

Mine are 3 5/8" from the top of the lock nut to the top of the threads. Just about right for my needs.

Your positioning seems to be very close to mine. Seems kinda harsh ride for me. I'm not doing any jumping or stuff?

[2015 Z Force 800 53/Trail EPS]

My front end is quiet right now but my rear suspension was driving me crazy. I found seized a-arm bushings were turning in the arm tubes and were also pinched in the mounts. Did a little re-machining and all is perfect now. I also went to a graphite-based high pressure grease because they say for this type of application, it should work better. So Far so good.

Always jack it up enough for the wheels to be off the ground when you grease the a-arms. That lets the grease go where it's needed first.