Originally Posted by
guy b.
Chi sau is not fighting or a simulation of fighting. So learning applications from chi sau is a non-sequitur from the point of view of WSL VT. You can't fight from chi sau because the opponent can leave chi sau whenever they like. It is an artificial drill relying upon cooperation and designed to teach certain things relevant to fighting.
A similar method is "grinding arms" in some other southern chinese MA, although chi sau much more developed and flexible, and of course teaching aspects of a completely different system