Each weapon has mechanical principles that it operates with. Even just stick or rock, A stick is just two things in its attack mode, an impact weapon and a thrusting weapon.Understanding and apply this means you can correctly apply an attack. Adding to the an understanding of the body and its weaknesses you can now maximize the damage you can deliver. In its defense mode it is a shield, I know it is hard for a student to wrap there mind around a concept of hiding behind a 3/4 inch diameter by 28 inch long piece of wood. but when you realize that as it moves it covers that portion of the body, you are protected when done correctly.
The gripping area, the striking area and very important to to know and understand when using this as it equates to your ability to deliver the most force through torque. A stick as an impact weapon delivers in force based upon a simple physics equation which is F=MxA, Force equals Mass x Acceleration. When realize that Mass includes the portion of the person swinging the stick and the Acceleration come from speed at which you deliver the strike, you see how the force is delivered. When coupled with concept of Centrifugal force mechanics, your understand why the stick tip moves faster the the butt. This explains why the force of the strike is greater in the tip them in the mid-section. Just some thoughts for the day.