[Yoda]

Yoda,


No, I mean that the left and right shoulder move independently. There are
ways to "tie them together", such as imagining a rod joining the
tops of the arms. Some players squeeze the upper arm joints toward one
another to unite them so that a precise move down of the right will produce
the same precise move upward of the left. Some players are put together
"more tightly" than others, which naturally tie their shoulders
together better than others who have "looser joints". On the other
hand, I've seen tour swings in which the shoulders turn back flat, and then
to complete the backswing the right shoulder is raised straight up
independently of the left.

Proper Power Package structure is achieved in two ways:

(1) Using Extensor Action to keep both Arms as straight as the Checkrein
Action allows;

(2) Taking the 'wobble' out of the Shoulders by keeping them forward, using
Pectoral Action if necessary.

Players who choose to accomplish the above by forcing the Upper Arms to the
Chest add nothing to Power Package rigidity. In fact, such action can
actually inhibit the proper Extensor Action, i.e., the required stretching of
the Left Arm and Shaft by the Right Arm. They also risk inhibiting the Hands
and thus their assignment of maintaining the essential Stroke Geometry.
Finally, they will almost certainly force the Elbows to rotate inward and
closer to each other and contort the natural position of the Arms.
Ironically, this will disrupt the all-important Flying Wedge Alignments that
their 'precise up and down' Shoulder Motions are seeking to accelerate and
support.