It is my understanding that the clubshaft should always remain on-plane when it is swinging through the impact zone (which I will loosely describe as being between the third parallel and fourth parallel) and I am under the impression that this rule applies equally to swingers versus hitters.
The orbit that the clubhead will transcribe during its passage through the impact zone will be circular, and the size of the circular orbit must be related to the angle of the inclined plane - being smaller for a shallower inclined plane (eg. elbow plane), and larger for a steeper inclined plane (turned shoulder plane). The hands will also move inside more quickly if the circular orbit is smaller - eg. Hogan's swing where his clubshaft is slightly below the elbow plane (closer to the hand plane) during its passage through the impact zone - and that it is not dependent on whether a golfer is a swinger or a hitter.
Jeff. I am confused. When you say "the clubhead will transcribe during its passage through the impact zone will be circular" what is your vantage point?
jeez, all this so you can go back to ISG and shout "you're wrong" at people.
__________________ The student senses his teacher’s steadfast belief and quiet resolve: “This is doable. It is doable by you. The pathway is there. All you need is determination and time.” And together, they make it happen.
I presume that we agree that the clubhead never travels in a straight line and that its path is always circular.
Here is a tracing of Kevin Na's clubhead arc through the impact zone.
Although the clubhead arc is circular as the golfer traces a SPL, the clubshaft lies against the surface of the inclined plane as it travels through the impact zone - as seen from a DTL view. In that sense, the clubshaft must stay on-plane against the surface of the selected inclined plane (eg. elbow plane) during its passage through the impact zone.
jeez, all this so you can go back to ISG and shout "you're wrong" at people.
Styles- you are wrong. I have been barred from posting at ISG.
This "Golf for Jeff" forum allows any LBG forum member to post their opinions regarding golf mechanics/biomechanics/geometry/physics without fear of censorship - in contrast to ISG which doesn't allow contrary minority opinions that are unpopular. I will only censor comments that are overt ad hominem attacks. There will no flame wars in this forum as long as I am moderator. You, or any other LBG member, are fully entitled to prove me (or another forum member) wrong on any golf swing issue as long as the post doesn't contain unnecessary ad hominem insults. In fact, very vigorous debate is highly encouraged in this forum as long as the poster doesn't indulge in non-decorous behavior that degrades the "quality" of this LBG forum.
It is my understanding that the clubshaft should always remain on-plane when it is swinging through the impact zone (which I will loosely describe as being between the third parallel and fourth parallel) and I am under the impression that this rule applies equally to swingers versus hitters.
The orbit that the clubhead will transcribe during its passage through the impact zone will be circular, and the size of the circular orbit must be related to the angle of the inclined plane - being smaller for a shallower inclined plane (eg. elbow plane), and larger for a steeper inclined plane (turned shoulder plane). The hands will also move inside more quickly if the circular orbit is smaller - eg. Hogan's swing where his clubshaft is slightly below the elbow plane (closer to the hand plane) during its passage through the impact zone - and that it is not dependent on whether a golfer is a swinger or a hitter.
Do you agree, or disagree?
Jeff.
I have to disagree. I would say it almost exactly opposite. The Clubshaft should never remain on-plane when it is swinging through Impact. If the Clubshaft stayed on Plane, it would result in a shank. The club has a CG or CM, which is an imaginary line that extends from Sweet Spot through the #3 pressure point.
“2-F…
Regardless of where the Clubshaft and Clubhead are joined together, it always feels as if they are joined at the Sweet Spot – the longitudinal center of gravity, the line of the pull of Centrifugal Force. So there is a “Clubshaft” Plane and a “Sweet Spot,” or “Swing”, Plane. But herein, unless otherwise noted, “Plane Angle” and “Plane Line” always refer to the Center of Gravity application. Study 2-N. Except during Impact, the Clubshaft can travel on, or to- and – from, either Plane because the Clubshaft rotation must be around the Sweet Spot – not vice versa. So Clubhead “Feel” is Clubhead Lag Pressure (6-C) and is a Golfing Imperative. (2-0). If Lag Pressure is lost the Hands tend to start the hosel (instead of the Sweet Spot) toward Impact – that mysterious “Shank.” When in doubt, “Turn” the Clubface so both the Clubshaft and Sweet Spot will be on the same plane at Start Down. Both Planes always pass through the Lag Pressure Point. Study 6-C-2-A.”
I think that the difference between the clubshaft line and the imaginary straight line between PP#3 and the sweetspot is comparatively very small, and I am happy to reword my question to fit your requirement "that the sweetspot plane should be constant through the impact zone". The only point that I am attempting to make is that a golfer should continuously trace a SPL through the impact zone - and that includes the post-impact period - and that the resultant hand arc shape will depend on the angle of the inclined plane.
It is not clear to me why you would think that the hand arc path near impact and post-impact would depend on release type.
My main interest, in posing this question, is whether the hand arc post-impact is relatively "fixed" for a good golfer who stays on-plane - because his hands have to move along an overall arc that depends on the angle of his selected inclined plane through the impact zone and the "fact" that he needs to continuously trace a SPL while his hands move through the impact zone.
I think that the difference between the clubshaft line and the imaginary straight line between PP#3 and the sweetspot is comparatively very small, and I am happy to reword my question to fit your requirement "that the sweetspot plane should be constant through the impact zone".
I know the difference seems small, but the difference between a shank and perfection could be millimeters. So, I appreciate the rewording. I'm sure you understand that small differences can lead to a future reader's misunderstanding, when using words like "always".
Originally Posted by Jeff
The only point that I am attempting to make is that a golfer should continuously trace a SPL through the impact zone...
Jeff.
Hybrid Mode
