I've been studying up on pressure points and come across a discrepancy in book 2. On page 187, Maek Chi Ki #9 it describes the pressure points as Um Kyo (Conception 7) or Ki Hae (Conception 8). Yet at the back of the book on page 206 its lists Ki Hae as Conception 6. So which one is correct? Is it Conception 6 or Conception 8? Does anyone know?