The background music is great. Looking forward to subtitles on the next video.
Oh, did you really mean this Bong Sao song:
https://www.youtube.com/watch?v=Xou0P8yIZCc
Those wing chun dummies can do Bong Sao with one hand tied behind their back, haha
Its seems the same principles apply to doing hooks in boxing. I cannot stand even watching kickboxing classes at the gym clubs, because when they start doing hooks I can feel-their-pain that they may have someday exposing their ribs to getting cracked...
To claim that Bong Sao should never be used is a complete heresy. It is a fundamental part of Wing Chun - why would it be stressed so heavily in Chum Kiu if it was not useful?
It all depends on the context in which it would be used. I can only assume the Opening Post is a kind of tongue-in-cheek joke.
Applications for Bon Sao are not allways widely known.
Here are some:
Wing Chun is a Puzzle, enclosed in an Enigma, set within a Mystery!
The Truth is Out There - Somewhere!