Cho family WCK is using Yik Kam WCK salutation. Since Yik kam is the source ancestor of The Cho family. I am presenting what I have learn in my sifu or older Cho generation with the detail of WCK. Notice within Cho family there are different arts from hung gar to CLF. So, not all Cho gar teaching is WCK. The salutation and sets mention in the clip is yik kam WCK in the Cho family. And they are almost extinct today .
I show these to the public to put on record oN once upon a Yik kam WCK within Cho family .
Ku has further evolved his salutation according to himself. His set in this clip is also his own creation, I called it post 2000 creation.