Traverse either direction on north side of the Alka Smelser boulder then top out. I think left to right is more fun, but this means basically starting at the crux. Not as finger strength dependent as some of the thinner problems on Pencil Thin making it a nice problem when your fingers are about toast.
The faily short boulder directly in front (North) of the Pencil Thin boulder. The traverse is on the opposite side of the boulder from Pencil thin.
pad (or not.). its a low ball traverse, and low commitment.