As promised, some kata performances that follow these 2 steps.
Enjoy!
Richard
Rika Usami - how to perform kata - she mentions 10 to 0 after using power
https://youtu.be/Ws6pvyXpWH8
Takagi Sensei - Chinto
https://youtu.be/zQ8tSZDiW8E
Takagi Sensei - Seishan
https://youtu.be/Gk-vrfeWOX0
Sakumoto Sensei - Annan
https://youtu.be/Gk-vrfeWOX0
Atsuko Wakai - Suparimpei
https://youtu.be/v0BK5f-Eet4