On Tempo in Swordplay
Here is a video recording of an enlightening lecture/demo by my fellow instructor Cornelius Berthold on the essentail idea of "tempo", or "indes", as the late medieval German fight books call it.
Understanding tempo and acting in True Times as suggested by Cornelius in this video will raise your skill considerably.
Special thanks to Simon Peters for assisting in the demo. Recorded at the BBB XI in later November 2017.