[Mathew]

Everything in the primary lever assembly produces circles. The primary hinge moves the entire lever assembly in a circle against its blade. The secondary hinge moves the entire lever assembly up and down in a circle around its pin. The wristcock moves the secondary lever assembly up and down in a perpendicular fashion in a circle around its pin. The swivel joint rotates the left clamp (hand) moving the secondary lever assembly around in a circle.

All of these circles are bound together by one constant and that is the inclined plane.

So the hinge arrangement can move the left arm and entire primary lever assembly anywhere it wishes as the left shoulder as the center and the lever assembly is a radius of a big sphere and the swivel(2k) and wristcock can move the secondary lever anywhere as the left wrist as the center and the secondary lever assembly is a radius of a smaller sphere, but we are always bound by the secondary levers longitudinal center of gravity staying on the inclined plane.

If the wristcock and swivel strictly have to travel up and down an inclined plane their dual motion will always be completely co-ordinate (although the 'degress' of what happens in terms of ratios will be different with accordance to the plane angle(perhaps a good future project)) and actually makes a sequenced release impossible. However if you introduce a third circle - the wristbend (which still keeps it inside a sphere) on the backstroke and downstroke, it can allow a pure sequenced release because the actual left palm can then be placed onplane. The wristcock will still be perpendicular and yet also onplane rather than the left flying wedge going through from above plane at an angle making the wristcock move the clubhead underplane.