1) So in Yiquan one should raise the foot by stretching the other leg? One wonders how they manage to perform kicks...
2) The only way I know to move my feet is to use my hips and legs, as the muscles in my feet move the toes. (Unless I'm doing a hand stand or something.
) So as an explanation on how 'mo ca bu' should be done, it is not helpful.
3) What has Yiquan stepping to do with your True Internal Strength?
To be fair to Buck, that quote isn't too far off Joep.
You do use the left leg to "kick" with the right leg.
There's a "stretch" component that allows for this kind of movement. It's not immediately obvious, takes some conditioning, but once you get it, you would never think of going back to the other way of kicking.
and to be fair to Joep though, as far as 3) is concerned: