[bioengine]

Click on photo
Daryl,
In the first photo, the white is normal forces.
Yellow arrows are shear forces.
Orange is the ground reaction forces.
The black line is the direction of pressure or force.

From the photo's take notice all the way into impact how stable hogans left side is, barely moves. Hogan has an internal hip rotation.
Notice through out the swing hogans hips and shoulders are perpendicular to his spine.
In the last photo notice his hips and shoulders are square to each others. Hogan's hips and shoulder are perpendicular to his spine.

Hogan's knew how to create ground forces and super stiffen at impact (stabilize). This allowed hogan to fire his upper body and square up with his hips at impact.
Poetry in motion.