I don't know if I am overseeing this issue.
This is what I am picturing
When sled is sitting on garage floor, lets say the compression is 0
When sled is thrown on side and spring/shock is compressed, lets say that is +7
When that other ski is in the air when sled is thrown on side and the shock/spring decompresses lets say it is -3
So if I am beating the crap out of the whoops on the rough trail headed to a good spot in the mountains, when the rebound on the shock/spring is in motion, won't it decompress more than -3 so lets say -5ish then come back to -3 while the skis are in the air? If this is the case, that spring is going to rub against that joint on the upper arm.
I just say this, cause in order for me to mount the shock onto the lower arm, I had to make sure that the spring was not under any compression/stress, put a 1X2 board between my gut and lower joint of shock and push up against the shock as much as I could just to get the bolt to slide halfway into the shock/arm. So I know that there is still more shock left in to decompress at a rapid pace to go past -3 on my homemade scale.
If you lift the front of the sled and the springs don't hit you are fine.... Period.
The shocks don't get any longer than that......