This isn't the perfect clip because there is some panning of the video. However, I think it does show a coil action and positioning of the body and weight shift is something that just happens as a result of positioning.
It’s inbetween Epstein and Joey Myers thoughts.Good example of the core turning back as a unit (hips and shoulders turn the same), the rear leg being in control of the move forward, and the swing shifting the weight against the front side.