After you reach the false summit, you'll have another 600 feet to go, first a gradual climb across an old crater then up a short pitch to the summit ridge. The alternative descent is the southwest chute. Instead of returning to the false summit, ski down off the summit ridge the bear right to the SW. The chute is a long continuous run that is steeper than the south face and takes you down lower than your campsite on the snowfield so only do this if you have carried out all of your gear. It is possible to cut across the base of the chute at 8000 ft elevation toward the left (east) and climb back up to the lower snowfield campsites to retrieve your gear.