Will you expand on that? I guess I have a hard time understanding how the Legs can leverage against the stretching core. I can understand the core resisting the firing of the legs and the core using the legs as leverage to "Sling shot" if you will. Like a spring being released.
Clemsnslee, the core needs to be able to let go of the clinch in order for the COM to lower.. This is what allows the obliques to be stretched reactively while the legs become leveraged.