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These drivers will Improve your Distance Game Substantially!
Drivers continue to be the most discussed, most macho piece of golf equipment amongst golfers and club designers.

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This area is designed to help everyone improve their golf game, pros and novices alike. Here our two Pro's, and game improvement techniques.

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Funny Thing happened on the way to the Golf Course on     May 9th, 2002

By: Dr. Barry Lotz

On May 9, 2002, the two most prominent governing bodies in golf, the Royal & Ancient Golf Club (R&A) and the United States Golf Association (USGA) reached a compromise on the issue of non-conforming drivers.

For the past three years the ongoing debate raged relative to the spring like/trampoline effect of drivers as to whether the .83 COR or .86 COR were to be conforming or non-conforming thereby, causing pandemonium to both the rules of golf and to its players. The Tour professionals were going to be allowed to use a .83 COR under USGA rules, while the R & A Professional players could use a .86 COR driver in their tournaments. Immediately thereafter, the release of numerous high COR clubs in North America that are not approved for use in events where USGA or Royal Canadian Golf Association rules applied, appeared.

So convinced were certain manufacturers such as TaylorMade (R5 Series), Callaway (ERC II), Dog Leg Rights HOG (XTL), Tour Edge (350JI) and Adams (GT363R) that their .86 COR products were either on the way to or at the retailers. Both TaylorMade mounted extensive advertising campaigns and Callaway based on their decision to roll the dice that the two governing bodies would allow such drivers. Callaways an ad series for the ERC II driver featuring the word BANNED crossed out and replaced by BLESSED, noting in smaller print that the proposal was pending approval. TaylorMade ads had flooded every major golf magazine for their R500 series, which boldly stated: “One will match your swing to get you the most distance allowed by the new USGA ruling.”

Comes August 6, 2002, and lo and behold, the United States Golf Association (USGA) and The Royal & Ancient Golf Club of St. Andrews, Scotland (R&A) have independently determined a rule that sets a uniform, worldwide standard for ‘spring-like’ effect in driving clubs. This rule represents a modified version of a joint COR proposal announced on May 9, 2002. The new ruling on the Coefficient of Restitution of driving clubs now finally establishes uniformity in the rules for professional tournaments both here and abroad beginning in 2003. This is, in this writers opinion, in the best interests of the game.

Moreover, in reversing its proposal, the USGA ruled that its COR limit of .830 will remain in place for all golfers in the United States who wish to post a score for handicap purposes. The R&A, which previously had no limits on COR for either professionals or amateurs, will impose the .830 COR limit in its Open Championship and recommend its adoption by the major professional tours outside the U.S. beginning January 1, 2003. Amateur golfers in areas ruled by the R&A will have no limitations on COR until 2008.

Response was fast and furious especially from Nike, Titleist and Cleveland who were most definitely excited with the ruling whilst TaylorMade, who jumped the gun with their non-conforming R5 Series, was undoubtedly upset and very quiet and not talking to the media, as was Callaway.

Mike Kelly, Nikes category manager for golf clubs, who had just introduced their conforming 400cc driver in Reno, also lauded the ruling. “This was a process, and it was good to see that the process worked,” Kelly said. “It simplifies the retailers’ business lives.”

Acushnet CEO Wally Uihlein commented, “The joint decision announced by the USGA and R&A is good for golfers and is good for golf. This decision will insure that the integrity of the game is protected by ultimately having one set of rules worldwide for all levels of play and it will insure that the transition to uniformity will be sensitive to and fair to all affected constituencies.”

“Some consumers are going to be very unhappy,” said Craig Buckley, manager of San Diegos largest golf store. Buckley said all their stores throughout Southern California already has sold more than 300 high-COR drivers since the May proposal. “It’s going to leave a bad taste in their mouths,” Buckley surmised about consumer reaction. “We fully expect about half of them will bring their clubs back, and we’ll have to make good on that.”

So, just what is this COR that has produced such heated discussions amongst the retailers, manufacturers and consumers? The term COR stands for coefficient of restitution, the measurement of the rebound a golf ball has off of the clubface. In simple terms a golf ball impacting the face of a driver at 100 M.P.H. with a .83 COR would come off the face at 83% or 83 m.p.h.. Therefore, a driver with a COR of .86 would come off at 86% or 86 m.p.h. Wooden clubs of the past had COR values in the .78 ranges. That has climbed with the advent of titanium to what is now the USGA limit of .83.

Currently there are club manufacturers that have already built prototypes with COR values exceeding .90, although most makers agree that the current theoretical limit is about .88. Anything above that COR, based on current metallurgical abilities would suffer a failure rate that would prohibit mass production.

Now, given the technical inside, what does this all mean to the average golfer? In current designs the maximum COR effect was limited to a “sweet-spot” of about 1/3″, or the size of the top of a tee, to achieve the maximum effect. As the impact point moved away from the “sweet-spot” (a mis-hit), the COR value dropped dramatically. The goal for the manufacturers has been to expand the maximum COR zone over a larger area of the club face (the sweet-spot), whereby even off-center shots are more consistent.

According to Barney Adams of Adams Golf “Heres the real issue – reviewing our data at 100 M.P.H., its about two yards for every .1 in COR, all things equal. Less than 100 M.P.H. you drop off slightly, more you add slightly. Who benefits the most from higher COR? – the pros and excellent amateurs.

Should the ruling have gone the other way, TaylorMade Golf, with its expertise in high COR drivers would have gained a considerable advantage. TaylorMade, the premier golf manufacturer of 2001, who for the past 18 months (from January 1, 2001 through April 2002), was the number one driver manufacturer in Japan with their R300 and XR03 drivers all with COR between 0.840 and 0.850. Benoit Vincent, V.P. of design at TaylorMade, also noted that the difference between a COR of .83 and that of .86, translates into only six to seven yards of added distance (approx. two yards per .01 COR increase).

Manufacturers recognize the average hit-or-miss nature of the average golfers swing and consequently are trying to produce a legally COR zone that is as large as possible as well as trying to design clubs that spring back at lower swing speeds. Additionally, there exists another part to the COR equation: that of the ball. Sumitomo Rubber Industries Ltds, Tetsumo Yamaguchi, found that the “actual COR of a combined system is the product of how the club and ball work together”. Spalding a few years back touted this theory when they sold “matched” balls to TaylorMade and Callaway clubs. Should a major club manufacturer decide to introduce a ball matched to its clubs, then the way COR is measured may have to be updated.

In any event and probably in the not to distant future, the same governing authorities and the PGA Tour itself, will undoubtedly have to focus on defining club/ball performance standards. Currently, the USGA is experimenting with a new test to measure COR in driver heads. It will be nicknamed the Pendulum Test. It will feature portability, exclude the use of a ball and will not require the club head to be removed.

As to how far a manufacturer can go with the COR to reach the practical and physical limits, a .930 is generally considered the outer limit. The elite golfer then perhaps will gain an additional 15 yards or so, provided that the golf balls available are not going even farther. But, at this point in time, the controversy has ended!


Barry Lotz, J.D., Ph.D. is the director of the Professional Golf Teachers Association of America. He is a member of the Golf Writers Association of America, the California Golf Writers Association, and serves both as a Consultant and Mediator to the golf industry. He is also the author of numerous books, including “333 Best Web Sites for Golfers” and his current book, “How to Build Business Relationships Through Golf” is in the Top Ten Golf Business Book’s best seller list.

He can be reached at www.pgtaa.com or drlotz@cbsgolf.net

 

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Golf Equipment Reviews Sheets & Eats

PING

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Last year PING had the best-selling driver in the G30 model. This year, their new PING G has attracted a new set of devotees to the PING clan.
What the G driver offers is what every golfer desires – faster club head and ball speed. Using proprietary Turbulator Technology, VorTec and face/crown transition to combine for more efficient air flow, there is definitely a noticeable difference over the G30 version – all good.
The T9S Titanium face is thinner and hotter for maximum distance and deflection. The club’s adjustability with its 5-lobe hosel sleeve, allows ±1 degree of loft adjustment.
Another improvement is the DragonFly Technology –

$429.99 www.pinggolf.com

 

Make Winter time Productive For Your Golf Game

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If you live in an area where winter means cold temperatures, rain, sleet, snow and wind, your golf game may be tucked safely in the back of your mind.

While that’s understandable it is still a time to prepare for when the weather takes a turn for the better.

Here are some suggestions on how to make your winter productive for your game...

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This Month’s Featured Web Site Featured Golf School

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If you thought the Orient Express was high class, then you will love Rovos Rail. Recapture the romance and atmosphere of a bygone era as you step aboard our reconditioned wood-paneled coaches and enjoy fine cuisine in five-star luxury. Golf safaris are also available

www.rovos.com

Professional Golf Teachers Association

PGTAA graduates have access to positions as golf teaching professionals including head professionals at

both private and public country clubs, golf schools, driving ranges, golf learning centers, indoor facilities, high schools and college coaches. Custom club makers have added golf teaching as a new dimension to their businesses. Graduates can also expect to hold positions as managers of both public and private golf facilities within the US and internationally.

A magazine’s review of the PGTAA

 

Instruction Area Gof Tips and Tricks

Having problems with your swing? – Fix your slice! by Johnny Miller

I recently was examining swing sequences of some of the greatest players in history. Knowing that some of these players favored a draw as their standard shot while others preferred a fade, I sought to identify swing features within each group that would explain their respective ball-flight tendencies. Something profound emerged that I think will benefit all golfers, especially those cursed with a wicked slice.

What I found was this: Virtually every accomplished fader of the ball–from Jack Nicklaus to Tiger Woods–displayed a straight left arm at the top of the backswing. Conversely, those who preferred a draw–players like Arnold Palmer and Bobby Jones–maintained a slight bend at the elbow.

This discovery is great news for most slicers, as they tend to do by accident what intentional faders do on purpose. In this article I’ll explain why the dynamic works, and how a simple swing change will make a powerful draw your standard shot.

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This area of golfindustryonline.com is designed to help everyone improve their golf game, pros and novices alike. Here our two Pro’s, Geoff Greig and Mark Immelman, explore different aspects of the golf swing and game improvement techniques.

Although we are not able to directly answer questions relating to golf tips, you might try posting your question on our golf tips message board.

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it is our life…