So this is the second season with my M and I am starting to tinker a bit more. I was wondering about raising the pressure in the rear shock. I assumed it would just fill up to what I wanted to set it at, but as soon as I put the air to it the ass end started sinking? I put it up on a stand and the most I can get in there is 100psi.What could be going on? It doesn't sound like it's taking air at all.....?