Not from the book, but the 'feel' of "hitting the ball with the back of the lead shoulder" can be very helpful to many swingers. Gets you to turn more fully and helps keep you from opening up the shoulders too soon on the downswing. One of my key images when I am lacking a good turn.
Fran Dechaine, use to be the head of the golf school in Sun City
FL. He had a method of seperating hitters from swingers. One
idea was to look at the right shoulder on the finish of the swing. It should be closer to the target than the left shoulder. He would get a student to try to hit with the right
side and try to get the right shoulder closer to the target
than the left shoulder. He would then have the student try to
get the right shoulder closer to the target by pulling the left
shoulder back and out of the way. Sometimes a student could add
20 yards by pulling the left should back. You have great post.
Thanks, Donn