The “Window Wash” is a powerful move, especially when you are late in your timing. This circular motion has a lot of momentum in it, because you are using your center to move – rather than moving your arms by themselves.
If you get attacked by an opponent and they are closer than arms length, this is handy for moving them away from you and throwing them. This video lets you see how easy it is to be opposite hand-opposite foot and get back to same hand-same foot quickly.
While this video focuses on arm movements, there is also a lot to be learned from dropping your center as well. This video (also produced at our dojo) discusses in more detail the importance of keeping posture and dropping your center to catch your opponent off-guard.