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!

Search and ye shall find
 

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. :thumleft:

Winn McMurray of TGC or Shaniah Twain are my dream girls so I'm doing a lot of careful research.:idea1:


ICT

1-L is a Sweetspot
 

http://www.lynnblakegolf.com/forum/s...ight=sweetspot

Check out post #4

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.

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.

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.

The Unseen Force
 

And . . .

Notice that the weighted string (plumb bob) hangs straight down. The Clubshaft does not.

:shock:

It is this invisible "line of pull" that defines the Plane of the Stroke.

:salut:

"The Maine Attraction"
 

I want your gold watch.

Great Entitlements!
 

'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

What Mike got was golden . . . .just not a watch.

Showering Him with Praise
 

Urine Big Trouble.

Making a Point
 

As Mike correctly pointed out, hang your Plum Bob (line) from the point where your #3 Pressure Point would be and the weight will pass through the Sweetspot which is a pin point (contrary to what club manufacturers tell you). The Sweetspot LCOG is On Plane. The clubshaft, however, moves from its own Plane to the Sweetspot Plane and back to its own Plane again. So the Clubshaft Plane is always shifting between its own Plane and the Sweetspot Plane. This can be a little confusing.

No kidding !? :eyes:

I Shatnered my pants.
 

And therefore...... the sweetspot , as commonly conceived; a , singular, point ... on the face of the club, moves, as the #3pp (assuming a right hand low grip) chokes up or down on the grip. In other words.......The "sweetspot" is not a permanent spot...............like the....spot on my trousers say. Just saying.

Choking Up or Choking Down
 

OK OB - Your post is accurate - spot on - correct and scientifically "verifiable", however bothersome to me. So let's move down this road a little further and cover two different perspectives of your post with my own clarifications (maybe not relevant to anyone else).

Perspective number one - LCOG - clarifications:
1) Based on the amount tha you can practically choke up or down on a club - you're not going to be able to move the sweetspot much.
2) If done properly and you are sensing the LCG sweetspot - doesn't really matter on a practical level where it is - you'll bring it to the ball.
3) Finally for clarification for someone new - #3 pressure point is used as an "essential" element in Homer Kelley's writings - it's closest to the club - but it's not the only place one should feel lag in the hands or body. A table is defined as a flat surface with supporting legs - that leaves a lot of options - i.e. it's not ONLY that.

Perspective number two: - WCOG:
Based on items #1 and #2 above - when you choke up or down on the club - the bigger practical issue you change - is the "Widthwise Center of Gravity/"Mass" commonly measured as Swingweight. WCOG changes (i.e. choking up or down or changing the distribution of weight in the club) affect release issues, timing issues, and has a greater influence and required adaptations than LCOG changes.

In summary, choking up or down changes the LCOG and the WCOG - however the WCOG change requires more adaption for the player.

all lag pressure points are not created equal.
 

Great points Mike thanks. I love your LCOC 2. Its maybe heart and soul to the yellow book. 3 is "golfs secret". Put em together and...... look out flag.

If you will allow me to expand on point 3 from my own perspective..... you astutely point out that there are other places in the hands where you can feel Lag Pressure but assuming you're right hand low the lowest point of contact between the hands and grip will effectively be the top of the aforementioned plumb bob line, the top of the LCOG . Meaning that the #3pp is normally, the only place in the hands which both senses Lag Pressure and at the same time attaches to the LCOG. Hence the special emphasis Homer placed upon it. The #3 Pressure Point is both Lag and Sweetspot. And see LCOG 2. for how that works nicely, folks.

In regard to WCOG. For sure......nobody chokes down on a club to move the sweetspot. Hardly anybody knows thats happening, though it is. But to shorten the lever for power regulation and/or to speed up the rate at which the club/lever switches ends (Seve loved to choke down to the metal and throw the head)....... is to employ a very effective application of basic physics to the game of golf. Commonly done without any thought to physics and normally requiring a practice swing for the adaptation you find bothersome. How many times do pros on tv take practice swings with a little pitch vs with a driver say? Its a 3 or 4 to nil ratio normally.

Mike, Ive been thinking about swingweight vs LCOG a fair bit lately in trying to figure out if I should counter weight my +1" irons back a bit from their E swingweight. Do you have an opinion? I could play em as is, no big deal but Im wondering.

It occurs to me that an E swing weight by itself can have a variety of LCOG's for any club depending on where , how the swingweight is "upped". Lead down the shaft vs lead tape on the toe , vs lengthening the shaft .....all have different LCOG's. Added swingweight , does it make the club switch ends faster, necessarily? Youve got to take into consideration the heavy head coming out of longitudinal , inline...wouldnt it fight release a bit but then tend to topple faster? Or maybe not......

Maybe Bernt has an opinion on this. I remember a model he linked to once upon a time. Im going to do some experiments, maybe Ill drop a king can of Molson and a pebble off the leaning tower of PIza.

Notice how I didnt say "butt weighting" in your presence.

Butt weighting... Makes me think about a couple of other "weight centers" that has nothing to do with golf either. If I hit a snap hook on hole #1 coming friday because I was thinking about Marilyn Monroe instead of "straight down the middle" I'll know who to blame :laughing9

__________________

I think it is easier to release a club with a light shaft and a heavy head. But also easier to flip. And harder to hit a low ball.

Having said that, it would have been interesting to experiment with super light shaft and then add weight to the clubhead until the club was as heavy to swing as before. I believe you get more ball speed from moving mass in the clubhead than you get from putting a similar effort into the other end of the club.

The only thing I KNOW is that my ball striking with irons improved when I moved to S300 shafts from something that was much lighter. But that could have been due to stiffer shaft and higher COG in the clubheads as well.

A good start to your journey would be to attend the Alignment Golf seminar by Yoda and Rick Murphy. It will be held in March (not sure of the dates)in Greensboro, NC.

I attended last year. It will make the little yellow book come alive, for you. If it is at all possible for you to attend, do it. You will have a very good start on your journey.

Best of luck in your PGA apprenticeship and and your quest to learn The Golfing Machine.

Alignment Golf Workshop / High Point (Greensboro area), NC
 

Thanks, Sligo. All professionals and amateurs interested in the program should go here for more information:

http://lynnblakegolf.com/forum/showt...2273#post82273

:salut: