Reaching 19,000 yilus

On Jun. 14, 2016, I reach 19,000 yilus. From 18,000, to 19,000 yilus, I have noticed the following:

1. I am able to more clearly see a dot that can be used for rotation. That can be in the opponent's body, my body or in the space. See this article for more detail. When I watch Master Chen Zhonghua push hands videos, I can see this dot in his actions.
2. I am able to engage my waist more. During push hands, the setup I previously talked about must include the engagement of the waist.  Unless the setup is there, don't do the actual move. However, the process of learning this does require repeated attempts to locate the moment when the setup is done, since I don't know what it means to be "the setup is there" previously.
3. During push hands, I need to remind myself about maintaining a fixed dot in my body during the setup process. Recently, I notice that I am not doing that as much as I focus on point 1 above.

https://youtu.be/-cJO0BsmCSM