[Daryl]

Sergio Pulley

Since I have absolutely no clue about including pictures, the geometry added to Sergios Swing pics are in the attached thumbnail. The difficulty I had in attaching this picture is somewhere between fixing a leaky faucet and rubbing two sticks together to start a fire.

If you start at the first picture of the sequence, notice I outlined Sergios Hand Locations on his Backstroke and Downstroke. I had to extrapolate one to finish the pulley.

Anyway, look at the Centers of the Pulleys.

The Pulleys are the same size. If you review Yoda next to Hogan in "The Gallery" their Heads are much more centered over the ball which results in better Straight Line Delivery Path and their hands enter the Pulley more sharply.

Sergio pulleys are not as small as Hogans. Keep in mind that for each inch the Pulley decreases in diameter, you have an exponential increase in Clubhead Speed and that means Lower Effort Output for equal Clubhead speeds. And that's not all. Hogan enters the pulley slightly closer to the pulleys Horizontal Centerline so has more delay in Release. So, two properties of the Pulley are Size and Entrance Location. The Size of the Pulley is pretty much fixed. Your Body Size, Shape, Height and Arm Length pretty much determine all of that.

Also, please notice that Impact Hand Location is not the Lowest Hand Location during the Swing (Ball Location) but that the Center of the Lower Pulley is over the Ball. That means Phenomenal CF. Almost zero Clubhead impact deceleration. His Primary Lever becomes a steel rod. Awesome Clubhead Mass. You can write a book on that Issue alone (oh? HK already did). Consider that the next time you want to play the ball back in your stance. The father back in your stance you position the ball, the less CF you generate for the same hand speed.

Lastly; Do you see very much Delayed Release? I don't. It only looks like Delay because his head is so far behind the Ball at Impact.

Lastly Lastly; The centers of Sergios pulleys align with the impact hand location. That has nothing to do with anything. I just thought it made a really nice looking diagram. The Big white Circle represents the outline of his clubhead path and does not represent low-point. Close but no Cigar.