The Three Frames of Indoor Yang Family Fist

I've had a lot of requests to explain the reason for the three different frames in the Indoor Yang Family Style. Simply:

The Big Frame teaches basic body mechanics, conditions the body, and trains the instinctive patterns somewhat.

The Old Frame / Medium Frame teaches skill and superior body mechanics in a more combative Santi stance.

The Small Frame is almost entirely done in the manner you would use the applications to fight. You have to look closely to see the body mechanics in play, since they are so small. The Wu style is essentially this form slowed down.

These forms are the backbone of the system, and are supported by the "Long" Frame, the "Wisdom Fist", and the other forms in the system.