[Yoda]

Here's a look at Billy Casper's action. For several years running in his career, there was much talk about The Big Three -- Nicklaus, Palmer, and Player -- but there was really a Big One...

Buffalo Billy.

Check out his Head Positon at the Top of each sequence...first the Wedge and then the Long Iron. Is it Centered? If so, that would be a Head Pivot Center for one of the great players of his time.