[nuke99]

Also,

With the frozen right wrist. Bending and unbending the right elbow( passively or Actively) will cock and un cock the left wrist. refer to 7-3 book.

The magic of flying wedge automatically brings the left wrist to its perfect alignment at impact, which is flat , Level ( neither cocked or uncocked) at impact. At top of back swing, the left wrist is flat and cocked. After impact the left wrist uncock till the arms fully straighten and cock back up with the finish swivel.. ALL this time the Right wrist remains Bent ( which is set at impact fix) and Level .

Thus the frozen right wrist and forearm, combines with a flat left wrist that cock and uncock provides supreme accuracy.

Another good video to watch.. Tom Tomasello video letter 2 .

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Ok... I realised you asked power. which is a different question.

Power comes from mass, and acceleration.. Mass = compression at its max. by proper alignment. Pressure point control, extensor action. and also the mass of club , how much weight you can put into the club head etc.

TGM identified 4 power source. Called

Accumulator 1.unbending the right elbow
Accumulator 2. Uncocking the left wrist
Accumulator 3. rolling the left wrist.
Accumulator 4. opening up the angle between the left arm and the chest. Or also arguably PIVOT speed.

The further they can travel, the more distance for acceleration and faster the speed. think john daly.

The more the accumulator is Delayed for release.. The Greater the acceleration (the rate it gain speed) and the higher the force at impact. F(power)=ma.square.

The greater acceleration at impact , the higher power is possible ( also higher speed). Gaining acceleration too fast by releasing the accumulators thus deceleration before impact thus losing speed and throwaway. think Tom Watson Vs Freddie couples. Tempo vs distance.

The smaller the pulley, the higher the more abrupt the change in direction and release. thus greater acceleration . ( Endless belt effect). another way to gain effortless speed.

Now.. the greater the speed... the harder to control and the more taxing on our muscle.

This apply to every swing and explains all swing. TGM is not a Model by itself. its a Golf Catalog and Golf Engineering book. So, succinctly put, there isn't really a " TGM swing", but a mechanically sound swing according to TGM.