[Daryl]

Thrust anyone? The accelerated mass will cause a force of equal magnitude but opposite direction. [Clubhead Inertia] sensed and directed by the #3 PP.

6-C-2-A THE ESSENCE of Clubhead Lag technique is that it is always both Aiming AND Thrust. Passive – it is primarily Aiming the Lag Pressure. Active – it is the primarily Thrusting the Lag Pressure Point. The Orbiting Clubhead does not seek out the Ball – it seeks out the Delivery Line. But never directly – only via the Right Forearm and the #3 Pressure Point per 2-F, 5-0 and 7-3. It is guided along that Line to the Both Arms Straight configuration by the straight line thrust of the #3 Pressure Point toward the Angle of Approach quadrant of the Ball – or Aiming Point – per 1-F, 1-L-9/10, 2-J-3 and 6-E-2.

The Clubshaft is stressed by the weight of the Clubhead resisting a change in its direction or velocity – which is Acceleration. Acceleration bends the Clubshaft during Radial Acceleration (10-19-A). Change of direction bends it during Longitudinal Acceleration (10-19-C) which may be, or just include, the Clubhead Lag Pressure Point in addition to its main function of Acceleration Control. From Putter to Driver, the Clubhead Lag technique is indispensable.

If the Pressure Point pressure that produced the initial Clubshaft flex is maintained it will maintain the flex also. So the pressure will be a steady smooth Thrust from the entire Power Package Assembly, and will produce a constant rate of acceleration of the Primary Lever Assembly. If the Pivot moves the Right Shoulder at the same speed as the Power Package – or Primary Lever Assembly – the Accumulators will not be Released by this action until the Right Elbow can straighten. Even then the Clubhead Lag is still maintained – it has NO Release Point. Establish a “normal” Right Wrist Bend for Release – either frozen at some point, or moving from Maximum to Minimum Bend as the Ball Location is moved away from Low Point and/or the Basic Stroke changes the Elbow location (10-3) – because the Right Wrist Bend, along with Ball Location and Plane Angle determine the precise RIGHT FOREARM ANGLE OF APPROACH (7-3).

Bold by Daryl

The Downstroke Acceleration Sequence (Power Package) produces a "constant Rate of Acceleration" of the Primary Lever although the Pivot reaches its maximum speed early in the Downstroke.