![[Graphics:HTMLFiles/Left_shoulder_up_move_4_1_1.gif]](Images/Left_shoulder_up_move_4_1_1.gif)
It might take some practice, lead arm glued solidly to golf club, but here it is....
Model brian showing perfect straight line trajectories for the clubhead through the impact zone.
Just modulating the shoulder angular speed obtaining, either, down, straight or up hitting.
For such pure mathematical swinging how to define a low point, a swing center, or a swing radius?
mandrin