Looking at a frame-by-frame sequence of the Hogan downswing, it sure looks like he has his right wrist cocked as opposed to flexed back along the plane of the forearm. Anytime I mention to an instructor that I am interested in modeling Hogan's mechanics, stern warnings abound. In other books on his swing, there is always a "yeah, but be careful" admonition as his swing is broken down. Maybe it just ain't easy to learn the moves of the world's greatest ball-striker.