In your experience, how big would say an acupuncture point is? Say ST36, or Kid3? I'm sure all points vary in size to some degree. In training we are lead to believe that the points are very small and we have to be deadly accurate (no bad thing!!), but is this true?

Are we talking the size of a pin head, a 5p coin, or even as big as a 10p coin?

What are your thoughts?