I triggered a small wind slab in one of the chokes on the bench feature about 1000 ft below the summit of Superior. It was about 7:45 and the sun was not yet warming the snow. As I entered the terrain feature I noted some cross loading but continued because it seemed quite shallow. I anticipated a possibility that some snow would move given the slick crust but was surprised at the length of the cohesive pocket. The volume of snow involved did not present a threat for burial but could have resulted in a painful ride given the terrain. Luckily, I skied off the slab without incident this time. It ran about 350' of vertical into the apron below.