Greetings..
Baqualin: i agree, as i have stated previously, my opinion is subject to change base on new or revised evidence.. i would be honored to cross hands with Sifu Lin..
As for Fa Jing, much of my Chen training utilized a very external expression of the "internal" principle of Fa Jing.. it has only been in the last 5-6 years that i have found teachers that truly understand AND can teach "Fa Jing".. and i say this only because i have no internal or external skills that can even begin to match their effortless control of their opponents.. their skills at listening, sticking and adhering put them present as their opponents attempt to issue what they believe is Fa Jing.. the result is both hilarious and profound.. the opponent's "Fa Jing" is manifested in reverse, they blast themselves backward or sideways or even up.. When they decide to issue their own "Fa Jing", it is very subtle.. it perfectly finds the "insubstantial" element of the opponent's attack, and at the moment the opponent feels strongest, their weakness is exploited..
Last week at push practice i had manipulated a pretty good advantage, i had my teacher's arm pinned across his chest, i was substantial on his upper arm, near the shoulder and perpendicular to the line between his heels.. as i attempted to issue some Jing to unbalance him it felf like he sneezed a tiny sneeze.. next thing i know, he's holding me up by my wrist with that impish smile .. now, i'm no slouch at pushing, several gold medals from international competitions, quite a bit of full-contact back in the '60s-'70s.. and more recently, a bit of MT, NHB, grappling, and such.. and none of this stuff even affects my teachers.. it's so humbling.. but, the exhibitions of amazing "fa Jing" like in the clip, is just the tiny tip of an enormous iceberg.. and, to add insult to injury, my teachers say, when you get grasp on this.. maybe you start on the good stuff..
I'm certainly not suggesting that i have the "goods", but i am fortunate to have a couple of sources.. and i deeply respect their patience with an old dog like me..
Be well...
TaiChiBob.. "the teacher that is not also a student is neither"