During the fight of ZBT and GLFW, ZBT was about to match fists of GLFW, but pulled back instead because of the power and used Vacant Fists instead to counter the hardness with softness. Meaning, ZBT was afraid to go head to head with him in terms of power. The fist of GLFW was described to be 1000 jin. One of XF's fist that he wanted to strike YTZ with is also described to be 1000 jin/catties. Does that prove that XF is at least physically more powerful than a Great?