Re: How Do You Do This ... Er, Internal Jump?
Goodness... I first posted how to train for that trick about ten years ago on the old Neijia list. And a few times since then. Funny how things come back around. It's part of basic qing-gong ("lightness exercises"). I used to even show it sometimes at workshops. Of course, it's probably a "koryu secret", but we never knew it.
I wasn't looking around ten years ago.
So, it's new to me.