Support BladeForums! Paid memberships don't see ads! I am good at freehand sharpening but something I've always wondered was do you need a burr? When i first started I would rotate sides after each pass but now i stay on one side till a burr forms and switch. Then do a few passes alternating between sides before going to the next grit. Anyways is there a difference in the edge when alternating or staying on one side till a burr forms?