I am curious to see how your question gets answered.
I would add another related question. If a swinger powers the golf swing with a 4:2:3 release pattern, what % of the total power is due to PA#3 release? In other words, does PA#3 produce power independently or does is it simply transfer power?
Another related question is how can PA#3 produce power independently if the release of PA#3 is essentially passive - due to external rotation of the left humerus that happens naturally/passively during the release of PA#4 and a small amount of left forearm supination, which is merely a passive reversal of the left forearm pronation that occurred during the start-up swivel action?
Is the left wrist in 10-2-B more turned than 10-2-A or just the left thumb?
Ref: 10-2-A @ V/V/T and 10-2-B @ V/V/A.
Thanks
DRW
Originally Posted by EdZ
Jeff - a very good question, although the thread took an alternate route (perhaps we can get back on topic)
I would suggest that what you think is 10-2-B is perhaps more towards 10-2-A, and that this can require the type of turn/roll you mention.
Per 10-2-B the left thumb and #3 PP are on the 'aft' side of the shaft, for "on plane" impact support. That is a more turned position that the standard training grip you see on many aids would put you in.
See the photo of Homer that Mike O has in in signature, or in the gallery.
To find this position for your left hand, it really is exactly how your left hand hangs naturally at your side. For some that is more turned than for others, but in my case it is at about 45 degrees, not at vertical, or fully turned, as in 10-2-D.
From that position, hanging naturally at your side, lift the left arm straight up to shoulder high. Seeing the left shoulder hinge pin just like a door, and not turning or rolling your hand at all, move your arm back and forth on the horizontal plane.
That is your horizontal hinge motion, on the horizontal plane.
On the angled plane of a swing, that will still have a feel of turn and roll, but you will find it much easier to keep your Rhythm, and square up at impact.
As to the advantages or disadvantages to 10-2-D, it is a very helpful way to learn clubhead control, and most beginners would benefit from at least trying it to learn to lean the shaft forward at impact and hit downplane. It does have somewhat of a power loss IMO over 10-2-B, because you are removing the advantages of accumulator #3 (turn and roll). It is also best used for a fade.
Does anybody have any idea how Duval and Couples, Daly (I meekly submit they use more of a 10-2-D) overcome the power reduction that 10-2-D represents for most, due to no transfer power. I use a 10-2-B, but all the long hitters I know have a turned left hand!
Remember, Grip Types, per 7-2, are taken at Impact Fix per 2-J-1. In the case of the player that does not use Fix 7-8 or adopt it into their Address Routine 3-F-5 than Impact itself can give the best indication for the Grip Type taken. In the case of Couples and many other longer hitters, who starts their motions from Adjusted Address 8-3, their grips are dramatically different from their grips during his Impact 8-10 alignments. Mr. Kelley sated per 7-8, In-put-Out-put Power Ratio also is utterly dependent on Hand Location at Impact.
You wrote-: "Mr. Kelley sated per 7-8, In-put-Out-put Power Ratio also is utterly dependent on Hand Location at Impact."
I understand that to mean that the there must be forward shaft lean at impact with a flat left wrist and bent right wrist. I don't think that it refers to wrist positional variations at impact.
You wrote-: "Mr. Kelley sated per 7-8, In-put-Out-put Power Ratio also is utterly dependent on Hand Location at Impact."
I understand that to mean that the there must be forward shaft lean at impact with a flat left wrist and bent right wrist. I don't think that it refers to wrist positional variations at impact.
Jeff.
My response was to clarification in determining Grip Type for Long Hitter (10-2-B vs. 10-2-D). "In-put-Out-put Power Ratio also is utterly dependent on Hand Location at Impact" was to stress the importance of how the longer Hitters achieve their length and the alignments of Grip Type. I did not mention wrist positional variations at Impact directly, but all of the reference numbers I mentioned can be tied directly with 4-0.
Do you believe that there is a causal relationship between wrist grip choice (10-2-B versus 10-2-D) and long hitting? If yes, could you please explain the mechanism?
Do you believe that there is a causal relationship between wrist grip choice (10-2-B versus 10-2-D) and long hitting? If yes, could you please the mechanism?
Jeff.
No, not in of themselves. the Hands are merely adjustable clamps that allow the Wristcock, but no Wristbend, but they can influence Zone #2 Arm (Power, Force) components. For instance, a 10-2-B will give you the best opportunity to maintain the structure of your Flying Wedges 6-B-3-0-1, but if your procedure is one that accelerates the Clubhead Radially and throws the Clubface at the ball, then by all means employ a 10-2-D grip (reference 2-P).
Lotsa people probably end up with 10-2-D grips because they started out slicing the ball . . . . subconsciously the probably figured out they needed to have the face looking left of the target so they could play their slice . . . . as a result they end up 10-2-D . . . . many call 10-2-D a hookers grip but most of 'em fade it.
Lotsa people probably end up with 10-2-D grips because they started out slicing the ball . . . . subconsciously the probably figured out they needed to have the face looking left of the target so they could play their slice . . . . as a result they end up 10-2-D . . . . many call 10-2-D a hookers grip but most of 'em fade it.
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