There has been a lot of obfuscation in regards to striking vital points of the body. Many people who practice this, reference points by using the traditional chinese medicine points for accupuncture and accupressure. I am curious as to how historical this approach is. Is this a new, "invented", way of looking at kyusho, or is this how the old masters really practiced kyusho? What evidence is there that supports that they did use a methodology that was linked to TMC and how far back does this evidence go? Can it be traced back to the very creators of the karate kata themselves? Were these points specifically addressed by the creators of the kata so that the kata specifically showed them?