For better access to the end grain on the carving blank, I clamp the arm bow in a Jorgensen hand-screw clamp, then mount the Jorgensen in the bench vise with the hand-rest pointing up. I hold a bench chisel bevel down and pare the end grain. Cut in a sweeping motion cutting down into the web from the outside flat. This deepens the web and shapes the center knuckle at the same time.