Wild Bill Mehlhorn - one of very few Ben Hogan admired and learned from in his early days. Hogan even said that Wild Bill was the best from tee to green he ever saw. It can be easily seen that such things as the trigger compression, sequential swinging from the ground up or the diagonal stance was being present in Mehlhorn's motion. Observe carefully and pay special attention to the way he set up before starting his swing. It is very obvious that Mehlhorn must have been very aware how to benefit from the ground forces.
Henry Picard's name is very often associated with young Ben Hogan. Picard was known for his generosity to other players, and Sam Snead credited Picard with convincing him to turn pro. Picard also offered to bankroll Ben Hogan when Hogan was struggling, then got Hogan into the field at the first tournament Hogan would win. He also helped Hogan eliminate his hook, and Hogan dedicated his book "Ben Hogan's Power Golf," to Picard. From this short material presented below we can easily see how similar was the kinetics of Picard's pelvis area motion to that of the best ballstriker of all times. Pay special attention to his rear hip joint linear motion at transition - it is a great example of the SPC concept in the pelvis area. Also it shows how important from the mechanical point of view is passive lead side during the backswing phase; Picard's lead heel does not stay on the ground as well as his lead knee bends inwards helping to set the correct CoG pelvis area shift and making the transition almost automatic.
Macdonald Smith - Ben Hogan was being said to get his famous pronation technique from Smith's marvellous pivot guided swing motion. Smith's action was the most observed motion in the hickory era. Pros studied his swing pretty much similarily to later colleagues standing for hours on range observing Hogan's sessions decades later.
Please take a look at 1:03-04 of the video (01:18:43-01:18:44) that looked exactly like Smith was just creating the firm rear side via rear ankle and knee joints preset described in the SPC concept. Look at the waggle, too. And the diagonal stance. Not mentioning more obvious things like trigger compression or low plane angle. Indeed, if someone had a good eye and had analytical mind a lot could have been learned from Smith. Mr.Hogan surely did.
Ben Hogan took a lot of inspiration from baseball swing motion. Low plane, perpendicularity of distal limbs to the core, active stance that makes both legs and feet live their own lives and great kinetic sequentiality from the ground up - just to name a few similarities between great baseball swing and this of the greatest ballstriker that ever lived. It is widely known that Hogan met both Byrd and Williams for numerous times and asked them about motorics of baseball swing motion.
The above examples would not solve all mysteries that accompany Ben Hogan's secrets. But surely they will give an excellent picture of the background as well as underline many common points that were present in the biokinetically almost ideal post-secret Hogan's swing motion.
