This link is just the bsiic breakdown of how stopping chakra works, I already know this. And one reoccuring theme seems to be this, "A taijutsu technique that allows the user to disable an opponent by performing a two-fingered thrust at the opponent's tenketsu."
And yes I get how the trap works, but im asking how you infused the hair with chakra. You cant remotely infuse chakra into hair, and said mystical ninja energy flows like a stream, so if you cut off your chakra supply a few inches up your hair, all the hair trimmed away would just be normal hair.
