Ok, read your post,that I get. Technique vs concept etc but is that all he is saying?
Hunt1, in the navy we would call this "Nuking" a question. I think your trying to read too much into it.
"There is no fook" is referring to the fact that whatever the handshape a fook-sau HAS a specific purpose... fook-sau itself isn't the purpose.
Every technique in wingtsun is/was formed and refined from a concept to defend/defeat a different technique. In karate they have 10 basic blocks. they aren't specifically meant for any type of attack. They're like a cure-all but not a specific cure.
So your asking for a "specific thing" i like about him.
His understanding of the concepts and theories of WT. There are 3 stages to a martial artist.
1. You don't know anything, you fight instintively.
2. You know the techniques, but they are mechanical. You must think about them to employ them.
3. You know the techniques, they are reaction. You don't need to think about how to react; Your body and mind are one.
You are looking for an answer you really can't have. I understand that your not flaming, but honestly, you don't understand the answer.
WT is not about the "problem" it's about the "solution".
WingTsun was created and refined to theoretically and conceptually overcome all techniques, by using said theories and techniques to be a supperior system.
From the way we stand (yee-gee-kim-yeung-ma) to the way we hold our hands (wu/man-sau), to our fighting theories (bik-bo-tip-da or sticking to the enemy with stepping punches) to the concepts (centerline, immovable elbow, etc.)
Your thinking about a specific technique no? Well that is not the answer in WT.
It doesn't matter HOW you preform the technique. Like LITERALLY your hand doesn't have to be in a certain position to strike someone. You don't always have to be IN your stance.
There is no set wingtsun, because everyone is different. You literally COULD NOT pull of some of the techniques I do because our bodies are not exactly the same, and vice versa.
I have short legs so I don't kick all that much, I use a lot of hand techniques and I am a very close fighter. Some people have really long limbs and physiclaly can't fight as close as someone who doesn't have long limbs fight.
Anyways, I can't really explain it better than that. Your not asking the right question. Because there is no specific thing to ask.
All the best,
Jeff