[whip]

Homer wrote the book, the end. No need for another thread, hook face is determined by weight distribution and club shaft attachment angle, every club in the bag has varying amounts of hook face to give it the proper relation to the plane line, this is vaguely discussed in the book and could warrant further explanation. The only other thread on hook face did not produce any accurate explanations, this stuff is very important in having a chance to hit the ball straight.

Just to clarify the true swingers intent....

Print this out and turn upside down for Players View. Average Club: Impact 4" behind Low Point.

The hinge action is only during the time that the ball is deforming and reforming on the club face until separation. The fact that In this picture the club face closed only during the impact interval represents a horizontal hinge action, either by manual manipulation or the natural result of centrifugal force striving to achieve the clubs in line condition