Skins method is basically what I was asking for in my last post. Pick a spot at the very end of the tunnel(or front end) and measure. Assuming same brand and same length tunnel, that will be close enough for snowmobiles. Like you know, unweighted measurement or starting point can vary a little, its the difference between that and static(sled only) as well as unweighted and rider(sled and rider) that we want. There is a number in there that works best for our sleds in each terrain. That's what I am looking for but most aftermarket sellers give a coil length and that won't carry over from shock to shock. It's been the staple of moto setup forever, should be easy.
Comp damping is absolutely the culprit of the poor ride. Aftermarket shocks address this, just need a somewhat standard starting point. I'll figure it out and some shock makers give you a coil length to start with but mine does not. I was feeling lazy I guess.
You could measure the shock, like you mentioned, but that is a little harder on the wife or kid that I drag into the garage for help. Ultimately it's where the chassis sits that your after. Also, I could use my Slacker digital sag tool for moto and do it by myself.
