i wish we had some video to compare on this. not very tight on the terminology and I didn't get to see the ba bu pai an that yu shan did though I've seen clips of mantis108 doing it.
the leaking palm is, I think, a left hand strike to the side of the head/neck done with the inside of the hand, palm up?
my hung gar teacher was big on the concept of 'drawing' and we spent a lot of time sparring with him pointing out, retrospectively, what he had done to draw me.
"George never did wake up. And, even all that talking didn't make death any easier...at least not for us. Maybe, in the end, all you can really hope for is that your last thought is a nice one...even if it's just about the taste of a nice cold beer."
"If you find the right balance between desperation and fear you can make people believe anything"
"Is enlightenment even possible? Or, did I drive by it like a missed exit?"
It's simpler than you think.
I could be completely wrong"