Master Chen Zhonghua Online Lesson on Sep 8, 2021 - Kelvin Ho
Fixed two dots are static power. Add one more dot between the two is dynamic power. As long as you can stretch this third dot against the fixed two dots, you have power, e.g.
- Lock the head and knee, push the kua out.
- Lock the back of the head and the front shoulder, push the bottom of the neck close to the front shoulder out.
The wrist should be stretch on the same line. The ankle should be stretched at the right angle.
Master Chen explained the difference in the following: 开步、合步、跟步、开脚。
Size of the two gears determines the direction of the resulting power.
Dao - Everything exists as it is. There is no right or wrong. The sequence matters. An individual piece is fine as it is. If you disrupt the flow (the sequence), it becomes problematic.
Elbow (in), Kua (rotate), Hand,(out). It is wrong when the sequence is messed up.
Source: https://practicalmethod.com/?p=77002