chi sau/sticky hands/ contact flow?

anybody get the link for this video so thread makes sense please?

thanks

RICHIE (not chulo)

Good Chi Sao is very useful stuff.
Lots' of systems have contact flow / sticky hands type drills. You can tell the good stuff because it shows up in loads of different systems (Richies included)

...really cool.
can't say i know 'anything' about the style. but all that working of the hands that (as far as i can tell) is a HUGE part of wing chun, has a profound affect on reflexes (positive). i say this from some personal high-school (secondary school) experiences where i had this kind of constant exchange (between me and my friend, who 'was a charlaton who claimed to be an expert', BUT was an excellent street fighter--and so we constantly tried to work our arms in a way that wasn't really that dissimilar, though not nearly as graceful). [enough background], when my moment of reckoning came, my arms seemed to move a wee bit faster than i could think. it was some silly school fight, but it had a profound affect on me. i liked that things came out without any thought.
and i like that this master's (in the vid) workout includes grabbing the back of the neck--with elbow strikes, etc...

a nice break for me and my youtube searches that started out looking for brutal fights and ended up with voyaristic car accidents that include people.
and metal. i guess i have to factor that sort of unpleasantness in when i search the internet.