Not all coaching is equal, it must be compared against alternatives.
Lots of people look at fencing. Lots of people watch videos. What are you actually “looking” at when breaking down someone’s motion?
We have many ways and senses to process information with. How do we put them all together to control our actions?
Closed feedback loops are a fundamental part of engineering control theory. They should also be a fundamental part of your fencing.
In the year 2000 Antoinette Gentile published a framework of understanding and classifying motions based on four controlling dimensions. This framework, which has come to be called the Gentile Taxonomy, can help to classify different actions and identify the prime challenges in accomplishing them.