The Roosterbuilt guys recommended to me that I should run my front track shock really loose for better deep snow performance. I have the Toms Powderwedges(also recommended by the Roosterbuilt guys) and the Toms E motion rear suspension set up with Fox air shocks. So I set the front track shock air pressure right at 47-48 lbs. Made a big diff on how the sled gets up on the snow. Might even cut it down to 45lbs. I run the rear a little stiffer to combat excessive ski lift, 115-120lbs in the mains and 165lbs in the Evol chamber for a 220lb rider. Still very plush ride in the rough with great bottom out resistance. If you are running the stock springs run the front spring so soft the clip just stays in and the torsion spring on the highest setting(it's 4 or 5). Better yet get the stiffer rear spring from Doo or the Renton Coil spring Ti spring and get some real adjustability. Stock springs are way too soft and get softer really quick.