Another excellent route, maybe just worth ***? It is sustained at F6a-F6b+ and the crux on the top slab may be just F6c. Start just R of a line of grooves and hairline cracks about 10 m R of Persistence. Balance up left to holds by the crack. Weave around thin cracks and grooves to the foot of a steep rib. Climb the rib to jugs (avoid the loose flakes in the overhang to the R!) and an easier slab. When holds on the slab run out, rock right to a notch in the arete. Climb the smooth slab and arete to a blunt ledge(crux). Move precariously up left to finish.