Hi Karin, I also have a question about the MingGong Stem calculation (Method 1): In the calculation formula, you mention: MG S = (#YS x 2)+ #MG B – 2 for the formula; with the exception of not substracting 2, if the Month Branch is Zi or Chou. For the 1st Practice Exercice 7; in… Continue reading Practice exercise 7 #1 Janey Yin MingGong (method 1)