One of the topics from our SKD online lesson on 11 Jul 2020 is on the importance of not being double weighted.
In this clip you can see the principles of Tai Chi at play in SKD to solve the problem of double weightedness.
In this instance, I am explaining the application of the "2 4 points" in the use of footwork to illustrate why it is important to avoid double weightedness as it affects our ability to move.