[Jeff]

I think that a swinger can use the aiming point concept to affect the club release point (release of PA#2).

If one aims the hands at a point behind the ball, then it induces a more circular shape to the upper half of the U-shaped hand arc and a sweep release (because the force inducing release is operant at every moment the hands move in a circular arc direction). By contrast, if one aims the hands ahead of the ball it induces a more straight line shape to the the upper half of the U-shaped hand arc and a straight line hand grip pull (in-line with the longitudinal axis of the clubshaft) doesn't induce an early release. However, the hands have to suddenly change direction after the hands reach right thigh level and this induces a late release.

I think that this aiming point concept affects the release because the force inducing club release is dependent on i) the degree of change in direction of the hands as they move down the hand arc and ii) the change in hand speed at the exact moment that the hands change their directional movement and thereby the direction of the grip-pulling force. The force inducing a release (which some people label a centrifugal force) will be greatest if the hands suddenly change direction from a straight line path to a circular-shaped hand arc with a small radius and if the hand speed at that exact moment is at its maximal value.

Jeff.