Tonight, I was able to see how Master Chen Zhonghua used his waist to apply indirect power. It was very clear to me for the first time. It was as exciting as seeing the "line" for the first time back in 2011. The action was like that of a nutcracker. He also showed how to handle when the opponents always held on to both of his wrists. Don't fight at the wrists (contact point), don't try to get your wrist off the hold.