I had my Axys RMK 163x3" out yesterday for the first time this season (have been riding the 13 155" for early season) and got a chance to re-acquaint myself with it and how it handles, my buddy summ8rmk had his Khaos 155x3" along for the ride as well so we got to do some comparing. Conditions weren't ideal, there was a HARD icy crust under a relatively thin layer of mixed light and heavy snow so handling and traction was unpredictable depending on the face, aspect, and wind characteristics of each hill, along with the tracks and trenches from previous riders , it was a really mixed bag of snow conditions.
Anyway, though I had planned to tighten my RTS a bit, after riding yesterday I think I'm going to leave all of my current suspension setup alone, I have the basic PRO RMK shocks, not the clickers or anything fancy. The downfall of my setup is bottoming out, I have to be really careful how I land when doing even small jumps so I don't break anything from a sudden bottom-out, but on the flip side of that, the rest of the time I'm extremely happy with the way the sled handles and it transfers insanely well for a 163, tall wheelies and good ski-lift on demand are both easy to attain without excessive body english. I do wish I had the better shocks to prevent my bottoming-out problem, but for now I'm pretty happy with my altered stock setup, especially since I've never been into big jumps or doing drops anyway.
At the moment I currently have the following amount of threads showing from the bottom of the shock body (full loose) to the nut. I know all springs are different, but this is my setup on the basic shocks
A-Arms: 6
FTS: 11
RTS: 19