Traditional teaching

In 1990, Peter Southwood instructed Sifu Waller to start applying his form and palm changes.
No specific guidance was provided.
The internal principles had been taught already and Sifu Waller was a seasoned martial artist in other arts.
Peter simply left Sifu Waller to figure things out for himself.

Sifu Waller returned with a variety of applications and these were corrected.
Over time, the way in which the arts should be applied was suggested by the form(s) themselves, the underlying principles and the physics.