Post by imperfectgolfer on Apr 21, 2021 11:18:52 GMT -5
Watch this you-tube video produced by Eric Cogorno.
Note that Eric Cogorno states that for a golfer to have forward shaft lean at impact, that the golfer's trail wrist must be more extended while the lead wrist must simultaneously become more flexed. In other words, he wrongheadedly believes that if the right wrist becomes increasingly extended that the lead wrist must automatically/naturally move in the opposite hinging direction by the same amount. However, that's not necessarily true and it is the same mistake made in Brendon Devore's recent videos that he produced featuring Jay Keel and Milo Lines. They primarily focus their attention on the trail wrist bending more backwards in the horizontal plane of wrist hinging (back-and-forth hinging motion), and they wrongheadedly believe that the lead wrist must imperatively be moving in the same horizontal plane of hinging at the same time, but in the opposite direction. However, that "belief" only applies to a subset of pro golfers who use the bowed lead wrist technique and it does not apply to pro golfers who use a very strong lead hand grip (like Milo Lines) and to pro golfers who use the intact LFFW/GFLW technique (like Henrik Stenson, Adam Scott, Justin Rose and Tiger Woods). There are three variations, which I will now demonstrate.
![](https://perfectgolfswingreview.net/MorikawaClubheadAttack.jpg)
![](https://perfectgolfswingreview.net/LinesRightArmThrow.jpg)
![](https://perfectgolfswingreview.net/Author-BowingEleven.jpg)
![](https://perfectgolfswingreview.net/StensonClubfaceClosingLateDownswing.jpg)
![](https://perfectgolfswingreview.net/LeadWristBowing.html)
![](https://perfectgolfswingreview.net/LeadWristBowing.html)
Note that Eric Cogorno states that for a golfer to have forward shaft lean at impact, that the golfer's trail wrist must be more extended while the lead wrist must simultaneously become more flexed. In other words, he wrongheadedly believes that if the right wrist becomes increasingly extended that the lead wrist must automatically/naturally move in the opposite hinging direction by the same amount. However, that's not necessarily true and it is the same mistake made in Brendon Devore's recent videos that he produced featuring Jay Keel and Milo Lines. They primarily focus their attention on the trail wrist bending more backwards in the horizontal plane of wrist hinging (back-and-forth hinging motion), and they wrongheadedly believe that the lead wrist must imperatively be moving in the same horizontal plane of hinging at the same time, but in the opposite direction. However, that "belief" only applies to a subset of pro golfers who use the bowed lead wrist technique and it does not apply to pro golfers who use a very strong lead hand grip (like Milo Lines) and to pro golfers who use the intact LFFW/GFLW technique (like Henrik Stenson, Adam Scott, Justin Rose and Tiger Woods). There are three variations, which I will now demonstrate.
Variation number 1: The bowed lead wrist technique.
![](https://perfectgolfswingreview.net/MorikawaClubheadAttack.jpg)
Note that Collin Morikawa (who uses a weak lead hand grip) has forward shaft lean at impact with his hands ahead of the clubhead.
Note that his trail wrist is extended, and that his lead wrist is palmar flexed (bowed).
This variation is what Eric Cogorno claims must always happen, but it really only applies to this variation.
Does the degree of trail wrist extension have to be equal to the degree of lead wrist bowing? The answer is negative because it depends on the degree of trail elbow straightening and the position of the trail shoulder socket. If the trail shoulder socket is further back (less downplane), then the degree of trail arm and trail wrist straightening may be greater - because the distance between the trail shoulder and the lead hand is greater.
Variation number 2: The very strong lead hand grip strength technique.
![](https://perfectgolfswingreview.net/LinesRightArmThrow.jpg)
Image 3 shows Milo Lines at impact. His hands are ahead of his clubhead and he has forward shaft lean.
His trail wrist is extended (bent-back) but that does not mean that his lead wrist has to bowed. Milo uses a very strong lead hand grip and when he approaches impact the back of his lead wrist/hand is facing the ball-target line and it is parallel to the swingplane. That means that his lead wrist's plane of radial-ulnar deviation is parallel to the swingplane. So, Milo gets his desired amount of forward shaft lean at impact by having less ulnar deviation of his lead wrist.
Variation number 3: The neutral lead hand grip strength combined with an intact LFFW/GFLW technique.
Here are capture images of me demonstrating the intact LFFW/GFLW technique.
![](https://perfectgolfswingreview.net/Author-BowingEleven.jpg)
Image 5 shows me at simulated impact with forward shaft lean where my hands are ahead of the clubhead.
Note that I am using a neutral lead hand grip strength (and not a very strong lead hand grip like Milo Lines) and I am not bowing my lead wrist (like Collin Morikawa).
So, how to I get my desired amount of forward shaft lean at impact?
The answer can be discerned by comparing image 5 to image 6. In both images, I have an intact LFFW where the clubshaft is straight-line-aligned with my lower lead forearm's radial bone (represented by the black tape), but in image 6 the clubshaft is also straight-line-aligned with my lead upper arm, which means that I have an intact LAFW as well as an intact LFFW. THe difference is due to a small degree of change in my lead forearm's degree of counterclockwise rotation. In other words, my lead forearm is slightly pronated in image 5, which produces forward shaft lean.
Here are capture images of Henrik Stenson showing that phenomenon.
![](https://perfectgolfswingreview.net/StensonClubfaceClosingLateDownswing.jpg)
Image 4 shows Henrik Stenson at impact.
Note that he has forward shaft lean with his hand ahead of the clubhead.
Note that he does not use a very strong lead hand grip strength (like Milo Lines), and that his lead hand grip is neutral. Note that his lead wrist is not bowed (like Collin Morikawa).
So, he gets forward shaft lean at impact by having an intact LFFW, but not an intact LAFW, which means that his lead forearm is more pronated at impact.
In all these 3 variations, the trail wrist is extended with the degree depending on the degree that the golfer "runs-out-of-right arm". Remember that in most pro golfers, the trail forearm does not pronate between P6 => P7, which means that the trail wrist can remain continuously perpendicular to the hand arc path, and swingplane. However, that phenomenon does not necessarily apply to the lead wrist!!! In pro golfers who use a very strong lead hand grip strength, the lead wrist is parallel, and not perpendicular, to the swingplane between P6 => P7. In pro golfers, who use a weak-neutral lead hand grip strength and an intact LFFW/GFLW technique, the lead wrist is continuously rotating counterclockwise between P6 and P7 and its angle relative to the swingplane at impact can be variable.
Jeff.