Got it. If you look a few frames before the decap, you'll notice I exteded my wrist much sooner that you did. This is so I hit the head with an unbreakable part of my body, as opposed to the very fragile wrist joint. When punching, always extend you wrist so that it punches the head square on.
[19:39] <Birdflu> I'm just sad that I can't give myself one
[19:39] <Birdflu> I'd have a great time