-
You mentioned the structure and biomechanics taught in the forms and why this often doesn't show up. I completely agree with you that we are training these things in the forms. But to me these are internal things not dependent on anything happening externally and therefore much harder to recognize and quantify.
.
What you say makes sense, but only to a small extent. Sure, if you are just talking about getting center of mass behind a punch, that is something that is subtle and can apply to many situations. And it isn't limited to Wing Chun! So that "internal" may not be apparent externally. But there is far more to Wing Chun than that. There is a biomechanic taught in the forms that includes how you step, how you align a punch, how you defend, etc. So if I saw your teacher Marty sparring without knowing who he is, would I immediately think..."Hey! That guy is doing Wing Chun!"....?