During HSDS, Zhang Wu Ji cured some of Ming cult's leaders and other people with his 9 Yang Shen Gong. Furthermore, he also could cure himself from the effect of weakening powder. So basically, 9 Yang Shen Gong could cure most of all internal damages.
On the other hand, to cure Huang Rong from QQR's Iron Palm, Guo Jing couldnt utilise 9 yin jen jing to help Huang Rong and went looking for Yi Theng's help.
Does it mean in terms of Internal Damage Healing Power, 9 Yang Shen Gong is more advanced than 9 Yin Jen Jing ?