Board breaking and the art of the bellyflop

That's me with a back kick through 3 boards
We had a couple of students last night who had difficulty with their board breaks. When students have trouble with their breaks, it is usually a combination of one or more of the following factors:
- Poor mechanics — the whole technique is a bit suspect.
- Poor distance — the student is either too close or too far away from the board.
- Poor focus — the student misses the center of the board.
- Hitting the board instead of hitting through the board.
- Hitting the board with an incorrect hand/foot position.
Last night, the number 5′s resonated with me a bit. One teen had some issues with a palm heel thrust, and eventually bruised his hand and tweaked his wrist and elbow. His mechanics were a bit off as he didn’t chamber back far enough to give his arm a good distance to travel. But one of the other things going on was that he was hitting the board with pretty much his whole palm.
With a palm heel thrust, you should be hitting with the heel of the hand (which would be why it is a palm heel thrust and not a palm thrust). But you also want to turn your wrist so that you are hitting primarily with the palm heel just on the pinky side of your hand. It is kind of like doing a bellyflop into a pool: if you hit the water with a lot of surface area, you barely penetrate the water and it hurts! But if you dive in and pierce the water with a dive, it is a whole different experience. So a successful break is a dive, penetrating through the water. An unsuccessful one just kind of slaps the surface.
I see this a lot with palm heel thrusts and side and back kicks. On the kicks, you need to hit with primarily the heel. Plenty of board failures on side kicks come about because the whole foot is distributed evenly across the board. The heel allows you to drive through the target because of the smaller surface area.