A detail such as measuring out the right distance may seem inconsequential. However, without the right distance you will not be able to have sufficient time to generate power. So yes, every little details count.
Close up of the proper distance to generate power easily :-
Once you find the right distance then you need to be sung before you can transmit your power into the opponent. The video below shows zero-inch distane in fajing. As you can see the pain is really. It is not a push!
We can use the Wu (Hao) form to train the body’s opening and closing to magnify the penetration of the power as shown above.
The entire Wu (Hao) form can teach us how to gather and release the power as illustrated in the video below :-