Philly...
Hinge action has the feel of the entire Left arm flying wedge executing a hinge action around the Pin whilie controlling the Clubface Motion...whereas... swivel rotates the shaft around the sweetspot with the lower portion of the arm independent of the hinge action...When you come down ...I'll show you...
Hinge Action - Clubface...
Swivel - Shaft Rotation around Sweetspot
AS
Last edited by annikan skywalker : 11-04-2005 at 09:36 AM.
For the Swinger, you must perform Swivel first to get yourself into position to apply your Horiztonal Hinge Action from Impact to Follow Through.
Swivel into Impact, then apply Hinge Action.
Hinge action in itself is defined during the impact interval (versus swivel - rotation of the hands)...
I was merely pointing out that it takes alot of talent and feel to actually feel hinge action - again, impact interval.
Wish I had that talent.
Which is why we should practice our swivel and hinge action in super slow motion so our computer can suck in all the correct alignments. In fact, that is the only way I would practice the above. Eventually, these correct alignments will leak into your full speed stroke.
Hinge action is what? Controlling the clubface through the impact interval - which takes what - 1/1000th of a second???
And swivel is the rotation of the hands into and out of the impact interval.
But the true way to practice is to practice the motions relative to the associated plane, no? Just seems like...while I understand and appreciate the concept of hinge action itself...it is inherent in the motion taken relative to the associated plane - vertical, angled, horizontal.
Philly...
Hinge action has the feel of the entire Left arm flying wedge executing a hinge action around the Pin whilie controlling the Clubface Motion...whereas... swivel rotates the shaft around the sweetspot with the lower portion of the arm independent of the hinge action...When you come down ...I'll show you...
Hinge Action - Clubface...
Swivel - Shaft Rotation around Sweetspot
AS
No offense Annikan but the fact that the Shaft rotates around the Longitudinal Center of Gravity or as you said the Sweetspot (see Glossary) is completely separate from Swivel (independent forearm rotation- compared to clubface closing as a result of the turning body or orbiting arms i.e. hinge action). Take swinging- the longitudinal center of gravity- that line from the grip through the sweetspot- is the line of pull- the shaft is completely subservient and helpless - and therefore rotates around that line of pull.
In addition, for further clarification- the shaft rotates around that longitudinal center of gravity, not the sweetspot. The sweetspot just happens to be that point on the clubface that the longitudinal center of gravity passes through the clubhead.
With all due respect ...Are you really sure I'm wrong on this one???.....Lynn personally taught me the shaft rotation around the longitudinal center of gravity(Sweetspot Plane) and it's differentation from Hinge Action.....
If you're really sure... I'm willing to sit back and listen.....
And I have no problem being reproofed if need be...
As a matter of fact Philly ...you and 6B were there when I got up in front of the room at Pine Needles as Lynn discussed this very subject...
BTW please for give me for ...when I said sweetspot I didn't mean on the clubface/clubhead...I meant exactly the LCG which IS the Sweetspot Plane(2-F) ...The invisible plane that we swing and that Centrifugal Force Pulls Outward....
Centrifugal Force is what pulls the string out into orbit...Centrepetal Force is what pulls the string around while its in orbit....
Some say that Centrifugal Force is a ficticious force....
Unfortunatley one of my best friends has a Ph.D in Biomechanics from Penn State....One of the first pioneers of that field of study....states you cannot have Centrifugal Force without Centrepetal Force and Vice Versa..."It's Impossible!!!"
- Dr. Brian Bergerman - Department Head of
Exercise Sciene at Campbell University
Last edited by annikan skywalker : 11-05-2005 at 01:59 AM.
With all due respect ...Are you really sure I'm wrong on this one???.....Lynn personally taught me the shaft rotation around the longitudinal center of gravity(Sweetspot Plane) and it's differentation from Hinge Action.....
As a matter of fact Philly ...you and 6B were there when I got up in front of the room at Pine Needles as Lynn discussed this very subject...
Dave...
I didnt go into it. I think Mike's point is that - swivel is a rotation of the hands into impact (or impact prep if you prefer) versus being pulled by LCG. I didnt go into it because it wasnt the intention of my initial post.
I am sorry...I dont recall exactly what Lynn said regarding this! But I am with Mike - separate concepts.
And Mike...
Is swivel a rotation of the forearms or hands? Just kidding.
I learned from alot of people initially - Randy, Chuck, Eddie, Todd, jaminid (Jason - and man would he love this forum!), etc and then eventually others -PB!!! (where the hell is he - man, he knew the book!). And I still do.
But I learned the most from Mike. The great thing about this forum is - though Lynn may have one perspective...others that know the book quite well and arent too far removed from Homer have another. Mike is one of them. So...
Its good to get other perspectives from 'knowledgables' (is that even a word) of the book. Just a comment.
Just kidding.
Hybrid Mode
