Both have high internal energies. Zsf learnt 10% of 9 Yang and cultivated martial arts for 100 years or so. Zwj learnt the 9 Yang and QKDNY. Both of them know tai chi. Does Zsf have more advantage because he is the founder of tai chi and Zmk only learnt from him?
And how would they fare when compared against Guo Jing and Yang Guo?