Isn't it a valid choice to pull up with the left shoulder, rather than drive
down with the right, in a 3-barrel swing? One time I asked Bill Glasson how
he had just hit a 220 yd 3 iron approach onto a tree guarded green. He said
he just pulled up with his left shoulder.
As the Right Shoulder Thrusts Down Plane, its Rotation returns the Left
Shoulder to its higher Impact Fix Location. Since the Right Shoulder Turn
Thrust (a Push) 'cranks the Gyroscope' and thereby creates the
Swinger's Centrifugal Pull, it is not surprising that Mr. Glasson
interpreted his Motion as a Pull of the Left Shoulder, rather than a Push of
the Right. But...he described the effect and not the cause. The
'cause' was the Right Shoulder Turn Acceleration through Pressure Point #4.