Excellent point. Multiplanar training is pretty easy to incorporate and will add a little extra "ouch" to your killer workout (which I have yet to try....). Try adding in any rotational exercises. Personally, I love the single arm power pull. However, the high torso rotations, oblique crunches...

Be quick but don't hurry.

You should check out the video It's original and uncut.

Below is myself-kicking off the challenge with 32 Atomic Pushups. I welcome all challengers.