AJG wrote:How do we know that is good enough ? What if it just feels more powerful because you are exerting more but in reality it's not as powerful as you think ?
Whats the test / feedback loop to ensure all that body movement is really driving your energy into your fist ?
Good questions.
I enjoy watching that clip. Seems like she has put in a whole lot of work, not easy to move as smooth and issue that crisp. But I can obviously only judge from my own experience.
Personally, I don't like "fajin" in empty air. It can be a way to understand body coordination better in a general sense, maybe a good practice for beginners. But I certainly believe that it can give you a wrong appreciation of your own strength. When you punch, strike, really hit something, most people will do things differently than they practice without hitting something. You always need to support your balance and structure in a different way. So IMHO, if you want to learn how to drive strength into, or through something, you should actually hit something. But also, hitting bags and different "dead" objects also has its limitations.
...So however you look at practice to developing strength and actually be able to use something like strength ...