If you can learn to depend wholly upon the twist of the body to do the work, you cannot have any difficulty in keeping the head in one place, because if you will look at the cut you can see that twisting the body leaves the head in a direct line with the center of the circle or sweep.
That is why I continually refer to the head as being the foundation of the stroke. I am merely trying to lead up to that fact from various points of view to impress upon players its true significance. You can also see that if you depend solely upon the twist of the body for power you cannot introduce a single lifting motion when you swing downward at the ball without destroying the relative position of the body toward the ball.
The true pivotal center, therefore, is not a single spot between the shoulders, but a line running through the top of the head straight downward through the center of the body.
When it is remembered that the greatest speed is necessary the instant the club head meets the ball in order that the ball will not get away from the club head too soon, it will enable you to hold enough back to get this increased speed as you “go through” the ball.
In short, you get a gradually increasing speed, not only to the club, but to the twist of the body, and to do that properly there should be no apparent effort to increase it.
The power necessary to keep increasing the speed after it once starts is very little. If you start slowly, the same amount of power required to start, if maintained steadily, will make the club head and body move or twist around faster and faster, just as in the case of the familiar example of the child’s merry-go-round. It starts slowly and the same amount of energy applied steadily gives an ever-increasing speed.