A power claw is a must, but as far as suspension goes you want very little preload on the front skid shock. with out any weight on the skid loosen the front skid spring until there is no load on it then tighten it up about 3/4 of an inch then add 145-150psi in the rear. If still trenching take almost all the pressure off the front skid spring and try that, then maybe tighten up your limiter straps, if it still trenches then you need a 162. I have seen 153 work well, a 162 will always float better. I cranked up my front skid spring almost all the way once last year just to see what would happen and it was embarrassing how bad it trenched, got beat by a m7. set it up this way and was climbing farther than anyone. The geo mod is for transfer letting the track drop farther into the snow(may not be the best for powder riding). Think about it and what you want to happen is as the track makes contact with the snow you want it to keep grabbing more as it moves from the front of the track to the back, so if the front of the skid is spinning all the snow out, the back is just falling in its hole and you have the effect of a short track.
