Understanding 1-L
The Golfing Machine - Basic
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02-07-2011, 11:43 AM
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Junior Member
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Join Date: Feb 2011
Posts: 1
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Understanding 1-L
Hi Everyone,
I want to a moment to introduce myself prior to asking my question. Basically, I am a PGA Apprentice, committed to being a great instructor. With that, I feel that understanding the science behind what you say is necessary. For instance, we know that having an FLW at impact is important, but I seek to understand why, hence my personal quest in becoming a GSEB. In my mind, that starts with guided self-discovery and understanding the big concepts.....I'm excited and looking forward to the journey.
Two questions re 1-L:
11. "Clubhead force and motion is on plane at right angles to the longitudinal C.O.G and varies with the speed, mass, and swing radius."
What, in the golfswing is longitudinal COG? or is there a better way of explaining that aspect of the machine.
20. For any given line of compression (through the ball) every machine must produce identicalimpact alignments.
This one I am just having a bit of trouble conceptualizing. Does this simply mean that regardless of the shot being played, the correct impact alignments are mandatory?
Thank you all for your help in advance, and I look forward to the journey!
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02-07-2011, 01:28 PM
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Senior Member
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Join Date: Mar 2010
Location: Pennsylvania
Posts: 1,900
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Search and ye shall find
Originally Posted by wilsmatt
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Hi Everyone,
I want to a moment to introduce myself prior to asking my question. Basically, I am a PGA Apprentice, committed to being a great instructor. With that, I feel that understanding the science behind what you say is necessary. For instance, we know that having an FLW at impact is important, but I seek to understand why, hence my personal quest in becoming a GSEB. In my mind, that starts with guided self-discovery and understanding the big concepts.....I'm excited and looking forward to the journey.
Two questions re 1-L:
11. "Clubhead force and motion is on plane at right angles to the longitudinal C.O.G and varies with the speed, mass, and swing radius."
What, in the golfswing is longitudinal COG? or is there a better way of explaining that aspect of the machine.
20. For any given line of compression (through the ball) every machine must produce identicalimpact alignments.
This one I am just having a bit of trouble conceptualizing. Does this simply mean that regardless of the shot being played, the correct impact alignments are mandatory?
Thank you all for your help in advance, and I look forward to the journey!
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Hi WM. Many people here will help with a high quality answer but if you use our SEARCH function for your specific terms, you will get your needed answers and the machine components that are interrelated to your quest.
You will see the big picture more quickly. A couple of weeks ago, I started investigating the STATIONARY HEAD. That search yielded the entire Hitting motion and the essential steps in performing it with skill. Lately, I was able to deduce my need for the HORIZONTAL HINGE which revealed my lack of true understanding of a Swing. So my indoor practice sessions are more targeted and I have several more friends and might even get a female friend out of all this, someday, if things work out.
Winn McMurray of TGC or Shaniah Twain are my dream girls so I'm doing a lot of careful research.
ICT
__________________
HP, grant me the serenity to accept what I cannot change, the courage to change what I can, and the wisdom to know the difference. Progress and not perfection is the goal every day!
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02-07-2011, 02:06 PM
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Lynn Blake Certified Senior Instructor
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Join Date: Jan 2005
Location: Massachusetts
Posts: 1,334
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1-L is a Sweetspot
__________________
Drew
Let Your Motion Make the Shot.
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02-08-2011, 05:09 AM
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Senior Member
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Join Date: Feb 2005
Location: Western Australia
Posts: 233
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Originally Posted by wilsmatt
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Hi Everyone,
I want to a moment to introduce myself prior to asking my question. Basically, I am a PGA Apprentice, committed to being a great instructor. With that, I feel that understanding the science behind what you say is necessary. For instance, we know that having an FLW at impact is important, but I seek to understand why, hence my personal quest in becoming a GSEB. In my mind, that starts with guided self-discovery and understanding the big concepts.....I'm excited and looking forward to the journey.
Two questions re 1-L:
11. "Clubhead force and motion is on plane at right angles to the longitudinal C.O.G and varies with the speed, mass, and swing radius."
What, in the golfswing is longitudinal COG? or is there a better way of explaining that aspect of the machine.
20. For any given line of compression (through the ball) every machine must produce identicalimpact alignments.
This one I am just having a bit of trouble conceptualizing. Does this simply mean that regardless of the shot being played, the correct impact alignments are mandatory?
Thank you all for your help in advance, and I look forward to the journey!
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Two great questions wilsmatt.
These concepts have eluded me for many years and if the defining post or video is out there I haven't found it yet.
Good luck with your journey.
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02-08-2011, 09:14 AM
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Lynn Blake Certified Senior Instructor
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Join Date: Jan 2005
Location: Massachusetts
Posts: 1,334
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Rid Depression with Compression
Longitudinal C.O.G is your "Sweet Spot" or "Swing Plane", reference 2-F. Plane Angle and Plane Line always refer to Sweet Spot LCOG application, not necessarily the Clubshaft Plane.
For any given line of compression (through the ball) every machine must produce identical impact alignments.
This simply means that Impact Alignments must match the desired shot, reference 2-0. Precision is recognizing and reconciling minute differences.
__________________
Drew
Let Your Motion Make the Shot.
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02-08-2011, 02:14 PM
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Senior Member
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Join Date: Jan 2005
Location: Oceanside CA
Posts: 1,398
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Originally Posted by wilsmatt
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Two questions re 1-L:
11. "Clubhead force and motion is on plane at right angles to the longitudinal C.O.G and varies with the speed, mass, and swing radius."
What, in the golfswing is longitudinal COG? or is there a better way of explaining that aspect of the machine.
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Look up Sweetspot in the Glossary of the Golfing Machine. Essentially the lengthwise center of mass of the golf club. If you let a golf club hang from the grip end and also have a weighted string hanging from the grip end - the string would show you the longitudinal center of gravity of the golf club and the point in which it passes through the clubface is the sweetspot. If you tap on the face to the left or right of the sweetspot - everything will rotate around that longitudinal center of gravity.
P.S. The only reason Drew is posting is to stay ahead of me in total posts - just an FYI for those interested.
__________________
Life Goal- Developing a new theory of movement based on Brain Science
Interests - Dabbling with insanity
Hobbies- Creating Quality
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02-08-2011, 02:33 PM
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Administrator
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Join Date: Jan 2005
Location: Atlanta, Georgia
Posts: 10,681
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The Unseen Force
Originally Posted by Mike O
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If you let a golf club hang from the grip end and also have a weighted string hanging from the grip end - the string would show you the longitudinal center of gravity of the golf club and the point in which it passes through the clubface is the sweetspot.
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And . . .
Notice that the weighted string (plumb bob) hangs straight down. The Clubshaft does not.
It is this invisible "line of pull" that defines the Plane of the Stroke.

__________________
Yoda
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02-08-2011, 02:54 PM
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Lynn Blake Certified Senior Instructor
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Join Date: Jan 2005
Location: Massachusetts
Posts: 1,334
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"The Maine Attraction"
Originally Posted by Mike O
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P.S. The only reason Drew is posting is to stay ahead of me in total posts - just an FYI for those interested.
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I want your gold watch.
__________________
Drew
Let Your Motion Make the Shot.
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02-08-2011, 04:04 PM
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Senior Member
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Join Date: Mar 2010
Location: Pennsylvania
Posts: 1,900
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Great Entitlements!
Originally Posted by drewitgolf
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Longitudinal C.O.G is your "Sweet Spot" or "Swing Plane", reference 2-F. Plane Angle and Plane Line always refer to Sweet Spot LCOG application, not necessarily the Clubshaft Plane.
For any given line of compression (through the ball) every machine must produce identical impact alignments.
This simply means that Impact Alignments must match the desired shot, reference 2-0. Precision is recognizing and reconciling minute differences.
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'Beat depression with compression'! Awesome Drew. I want the bumper sticker consignment! I think Mike wishes he'd though of it so he is lashing out. Perhaps this all because he cannot be his usual nasty self to KFC. I hope 12 piece and family are well. I hope Mike can find another sparring partner, soon.
I don't know Mike at all, so I'd be no fun for him. I know several people from Maine, anyway. That is what, half the population?
ICT
__________________
HP, grant me the serenity to accept what I cannot change, the courage to change what I can, and the wisdom to know the difference. Progress and not perfection is the goal every day!
Last edited by innercityteacher : 02-08-2011 at 04:10 PM.
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02-08-2011, 04:13 PM
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Senior Member
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Join Date: Jan 2005
Location: Thomasville, NC
Posts: 4,380
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Originally Posted by drewitgolf
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I want your gold watch.
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What Mike got was golden . . . .just not a watch.
__________________
Aloha Mr. Hand
Behold my hands; reach hither thy hand
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