LynnBlakeGolf Forums - Clubshaft orbit through the impact zone

LynnBlakeGolf Forums (http://www.lynnblakegolf.com/forum/index.php)

- Golf By Jeff M (http://www.lynnblakegolf.com/forum/forumdisplay.php?f=152)

- - Clubshaft orbit through the impact zone (http://www.lynnblakegolf.com/forum/showthread.php?t=6338)

Luke, Drewit anybody.

1L-11 "Clubhead Force and Motion is On Plane at right angles to the Longitudinal Center Of Gravity and varies with the Speed , Mass and Swing Radius."

Im having trouble picturing this one fully. By clubHEAD is he referencing the force and motion of lag pressure? What is meant by "right angles to the LCOG"? Is LCOG referring to the string or the sweet spot point on the clubface?

Where does force (when focused) point? Down the sweet spot plane and tracing the plane line like a laser or flash light?

I dunno. I really dunno.

OB

Quote:

Originally Posted by Dariusz J. (Post 60216)

That's the point ! Hell knows why aren't there face balanced clubs, but IMO not because someone wanted to make golfer's life harder.
I would risk to say that because of tradition. Backing to the middleages when golfers played with wooden stick bent at one end (looking similarily to a walking stick for elderly people)...and it was much easier to manyfacture it instead manufacturing a center shafted club.
Sir Winston Ch. could be right - we are playing with tools that are wrongly designed to this goal...;)

Cheers

Maybe but I tend to think that there is a very good reason that manufacturers dont make clubs that way. I think. They would never lie to us would they? No need for an answer. Remember titanium centered golf balls?

Perhaps trying a center shafted, face balanced putter at full speed vs a heel shafted, toe drop one would answer this question but maybe ruin some putters. Im thinking that with the face balanced one it would be harder to control the initial direction of the ball (face angle) and less powerful. Just a guess though.

I do know that Homer thought the old school 1930's longer nosed irons enabled CF to "have more control over the alignment of the club face, more powerful, more difficult to disturb".

Here is the link to the Croker sites audio tape. Its mainly about hip motion, action, Hula Hula etc but about 5 minutes in there is some stuff relevant to this discussion.

http://www.crokergolfsystem.com/Home...n_2-64kbps.mp3

Cheers

OB

Quote:

Originally Posted by Jeff (Post 60217)

Regarding the issue of shanking, I think that a major causal factor is a failure of a golfer to understand that the clubface must rotate from open-to-close through the impact zone,

YES ID AGREE WITH THIS. I HAVE NOTICED THAT ON THE RANGE A SHANK IS NORMALLY FOLLOWED BY AN OVERSWIVELLED PULL HOOK. MAYBE THAT IS JUST ME HOWEVER.

and that the closing clubface phenomenon is due to the release swivel action where the flat left wrist/hand rotates 90 degrees in the late downswing.

GIVE SOME CONSIDERATION TO CF OR THE NOTION OF THE CLUB FACE TOPPLING OVER ON ITS OWN. IT DOES FEEL THAT WAY TO ME ANYWAYS WHEN IM SWINGING, LESS SO WHEN IM HITTING MAYBE.

I think that the mental idea of the "clubhead rotating about the hosel" would actually help those golfers because they are essentially dragging the clubshaft towards impact as if the clubhead were center-shafted.

MAYBE THEY THINK THEY ARE DOING THAT. BUT IF THEY ACTUALLY ARE ROTATING THE CLUBHEAD ABOUT THE HOSEL , THEY ARE IN FOR A SHANK. ASSUMING THEY ARE MAKING GOOD CONTACT THEY ARE UNKNOWINGLY PERHAPS, SWINGING THE SWEETSPOT AND THE ROTATION IS THEREFOR ONE OF THE CLUB SHAFT ABOUT THE SWEETSPOT.

BUT AS A MENTAL IDEA I SEE HOW IT COULD HAVE SOME VALUE THOUGH TECHNICALLY INCORRECT.

I think that they need to realize conceptually that the toe of the club must rotate about the heel of the club during the pre-impact phase of the golf swing, and that it will happen automatically if they correctly rotate the back of their flat left wrist/hand.

CONCEPTUALLY MAYBE BUT NOT ACTUALLY AND NOT SOLELY DUE TO FOREARM ROTATION, I DONT THINK.

Jeff.

Hey Jeff

Nice thread again. With lots of contributions and food for thought. I have responded above In caps.

Regards
OB

OB Left

You wrote-: "MAYBE THEY THINK THEY ARE DOING THAT. BUT IF THEY ACTUALLY ARE ROTATING THE CLUBHEAD ABOUT THE HOSEL , THEY ARE IN FOR A SHANK".

I don't think that a golfer ever rotates the clubhead around the clubshaft axis. It only "feels" like it is happening when the golfer notes that the toe passes the heel in the followthrough.

What causes the clubface to close is simply the phenomenon of the flat left wrist/hand rotating in space. What causes this rotation?

Pre-impact, the release swivel action is due to external rotation of the left humerus within the left shoulder socket combined with a small amount of left forearm supinatory movement - all these biomechanical actions are passive and are merely the reversal of the rotary biomechanical actions that occurred in the backswing.

Post-impact, the flat left wrist/hand rotates around to the left due to a horizontal hinging action, which is biomechanically due to external rotation of the left humerus within the left shoulder socket while the left shoulder socket moves left/backwards due to continued torso rotation.

The clubface remains neutral relative to the left hand and it doesn't roll-over relative to the flat left wrist/hand because the left hand always firmly grips the club and never allows the clubshaft to rotate within the grasp of the left hand. The clubface simply rotates to exactly the same degree as the flat left wrist/hand rotates pre-impact and post-impact.

Jeff.

Quote:

Originally Posted by Jeff (Post 60236)

I think there is more at play here than just the swivel. Swivel does play a part but not the only part Im guessing.

Consider this photo of Homer Kelley. Somewhere on this site (I cant find it) is a post by Yoda describing what it is that Mr Kelley is swinging around his head. Something like a balsa wood club head with a small metal screw acting as the sweet spot and creating a COG similar to a real club.

You'll note the position of the string from #3 to the sweet spot. Not so "imaginary" here is it? Also of note is that the club face stays aligned nicely via CF without any involvement what so ever of forearm rotation or swivel.

It was Yoda who took this photo, he said the smiles seen here were due to Mr Kelley's first failed attempt that saw the string wrap itself around his body.

Regards

OB

http://www.lynnblakegolf.com/assets/...attach/jpg.gif

Yodasluke. Anybody.
Why should the "virtual clubshaft" be defined as the string from pp#3 to sweetspot? Why not pp#2 to sweetspot instead, since the CF is involved with pp#2 as one of the swing centers?

Quote:

Originally Posted by golfguru (Post 60115)

ISG readers just got sick of the "he said you said" where it was not appropriate to the majority of those reading in that forum. So Jeff was asked nicely to take his ball elsewhere. He did not, so now he is indeed barred. Sadly the cheers were loud.

The cheers were only from the sheep following the drivel written by the cowboy with zero 2nd tilt claiming he got Hogan's move...Seriously Jeff stuff is worth the read

39 for a few more days

Quote:

Originally Posted by no_mind_golfer (Post 60213)

Yodasluke,

I would like to know your age. Age and athleticism are big factors in how far a person can hit. I know this because I often play will a group of older-timers which I wager to guess have been on the planet hitting golf balls long before you were even a twinkle in your mother's eye.

These guys sit around an remiss saying things to each other like: "when did you start losing it".... (They mean distance). Just because Jeff does not hit hit his 5 iron as far as you does not mean he has a "power leak". Besides... golf is about three games.... distance off the tee is only one of them, then there is the short game and putting. Winning means being reasonably good at all three.

And, I'm sure that because they were hitting balls before I was born, it makes a difference in the price of eggs in China. That's priceless.

I'm 39 until the 26th of this month. I'm aware that some use age as an excuse, but I won't put up with that garbage. Tell them to get in the gym, take a lesson, or stop complaining.

Unfortunately, there's news that they are eliminating the Super Senior Division at the World Long Drive Championship. There's a man that's taken many lessons from me that has competed in the event. But if you saw him walk up, you'd bet your life savings that you could hit it past him. He's presently 60 years old, and he's had both knees replaced. He doesn't walk as well as he swings. He just set his personal best drive of 343 yards, last year at 59 years old.

Another student, age 51, is the one that I've written about recently that in one year has gone from 84 mph with the driver to averaging well over 100 mph in clubhead speed. He's having the time of his life and has taken double digits off of his handicap.

So, I'm not playing the violin for your "old-timers". I don't believe that Gary Player will drop a tear, either.

Quote:

Originally Posted by no_mind_golfer (Post 60213)

I'm backing out of this thread now because.... Frankly none of what you wrote (in that last post) make a damn bit of sense to me (I don't know the book chapter and verse and never will).

Who would have guessed that?

Quote:

Originally Posted by no_mind_golfer (Post 60213)

But I thought were were talking about the face opening on the backswing and closing on the downswing not release. I thought the issue was what causes shanking. Anyway. .... Here are a couple of parting thought on the dreaded "S" word...

1) Check your balance.. if you are going forward (on your toes) you will shank it

2) Try gripping down a bit. One-size fits all clubs don't work (men's adults for instance) but can be played by about anyone but only if you compensate for your individual anatomy. If, say your arms are longer than normal or your legs are shorter than normal or god forbid both, then you are going to have too much club shaft between your hands and ball. That will cause a shank... and it may even vary from day to day. Bobby Jones would adjust his hands up and down the grip on any given day and we should too.

#2 is so far beyond repair, it's unfair for me to comment...

Yodas Luke

You wrote-: "I'm 39 until the 26th of this month. I'm aware that some use age as an excuse, but I won't put up with that garbage. Tell them to get in the gym, take a lesson, or stop complaining."

Phew!

I have seen that attitude among many golf instructors. It is a great pity! The problem is not age per se, it's age-related physical inflexibility problems. Many elder people don't suffer from age-related flexibility problems - like Gary Player. However, others do - like Arnold Palmer. He has such poor torso flexibility at present that he virtually has to stand erect to execute a torso rotation. The age-related torso inflexibility problem is not remedial with gym workouts if the problem is genetic - an increased age-related genetic predisposition to calcification of spinal ligaments and/or increased fibrosis of the intervertebral discs and paraspinal ligaments that causes a major loss of disc/ligament elasticity.

OB Left

That photo of Homer has no relevance. Look at how he swings the string - his hand and arm is outstretched away from his body. In a "real" golf swing, a swinger has his right elbow in a pitch position alongside his right hip at the delivery position with the right elbow still bent - like Aaron Baddeley in the next photo. From that position, consider the biomechanical events involving the left upper limb that must occur if he wants to rotate the flat left wrist/hand 90 degrees into impact.

Jeff.

Quote:

Originally Posted by Jeff (Post 60245)

OB Left

That photo of Homer has no relevance. Look at how he swings the string - his hand and arm is outstretched away from his body. In a "real" golf swing, a swinger has his right elbow in a pitch position alongside his right hip at the delivery position with the right elbow still bent - like Aaron Baddeley in the next photo. From that position, consider the biomechanical events involving the left upper limb that must occur if he wants to rotate the flat left wrist/hand 90 degrees into impact.

Jeff.

Id bet that in Homers swirling balsa wood clubhead experiment, the club face conditions and string line from #3 to sweet spot would be present regardless of any degree of bend in his right elbow.

These things have nothing to do with the right elbows condition in his demonstration. That is the reason for the string line, there being no mechanical or rigid connection, just CF seeking to establish an aligned club face. This should be good news! I cant fathom how to play good golf without this sweetspot "feel". This phenomena is our best friend when properly applied.

Imagine swinging the club shaft instead: "Ok so this is now my pitching wedge and therefore given its heel to sweetspot measurement of x inches I now need to swing x inches parallel to and inside of the target line" And then, "Now for a 9 iron the measurement changes so Im just going to swing ........Ok now for my 6 iron which has a different measurement again .......etc etc. A different plane line for every heel to sweetspot measurement!

Why not just swing the sweetspot at the ball or aiming point? It's the sweetspot that our hands feel afterall.

OB