Packed snow on the well traveled trails gets me out at 10-15 psi, watching out for a burped too soft tire...softer the better. As always snow is great, ice is bad. Anyone have a 2.1 x 29" studded tire? Letting the front go where it wants in the sled tracks, getting more comfy with the drift. All proper winter. Big ski tour tonight, We'll see how the first ski of the year on the last day goes.