Climbed with Jamie via Yankee Boy Basin. We went up the face of Coffeepot to a point where we could traverse high (about 13k?) then drop to 12,600 on the Weehawken Basin side of Potosi. From there we ascended the North Couloir (40-45 degrees, steepest near the top) then up the final gentle slopes to the large summit. Descended the "standard route".
This was a great way to experience this mountain, the snow hid most of the loose stuff, and the north couloir was a really fun climb!