Posted by: Jack Mankin (MrBatspeed@aol.com) on Thu Jan 3 22:56:05 2008

>>> For me the definitions you provided from Leferbvre are correct, however your statement that the front shoulder rotating rearward while the back side is coming around constitutes a revolving door I disagree with. This is a function of the unload process and not necessarily the axis of rotation. In other words the swinging gate is not "exclusive" of forward shoulder rotation in a rearward manner, but instead the axis is tilted and not straight in a vertical manner...ala Rose.

As the backside rotates around a tilted axis, the front shoulder naturally (or better yet as a result of an effecient swing) must rotate as well. Hitting from a tilted axis of rotation doesn't change some constants such as maintaining the hinge angle of the cocked wrists and having both shoulder rotating in a connected manner. What I am trying to say is that if you have the front leg fan open as the front shoulder spins from a vertical axis that has not inward loaded first prior to forward unload, then you have a revolving door. A spring loaded gate will come around with more force than a revolving door.

Did I make any sense here? <<<

Hi Coach

You may be right. But I have a tough time seeing a swinging gate when the batter’s shoulders are rotating beneath a still head.

Bonds shoulder tilt

Jack Mankin