I have always wanted to climb this route. Conditions were perfect with freezing temps for 2 nights in a row. I hit the base of the couloir at 8am. About half way up the couloir, I was hit by a silent rock missile , the size of a grapfruit, that grazed my chin then slamed me in the chest. I was lucky! I mean seriously lucky. Looking back at it, I don't think I could have done anything differently other than climb it in the dark. The climb was fantastic. Perfect weather and nice firm snow. Just glad I made it back.