I already asked this on another section of this forum, but what I am interested in, is to know if there are any other points, which when pinched, cause the victim tremdious pain (such as pinching the skin on your upper inner thigh).
Pinching, as you describe it, has to do more with the cutaneous myelinated nociceptors and next to nothing to do with vital points...at least from the paradigm of Traditional Chinese Medicine.
BuDoc is probably a better person to respond to this.