Lets be Frank

By Frank ThomasFebruary 25, 2009, 5:00 pm

Visit the Gas Station


Frank,
 
What is going on here? A nitrogen-filled driver matched with an ultra-thin clubface whose sweet spot is as big as the face? Can this be true? Please give me your thoughts on the benefits and drawbacks of such a club. Thanks, Frank.
 
' Dave

 
Dave,
 
The USGA has made some silly and questionable equipment rules changes over the past several years, but when it comes to measuring the performance of a driver with regard to Spring-Like Effect'or, in tech-speak, Coefficient of Restitution (COR)'it is very efficient and will not place on the conforming list of drivers a club which exceeds the limit. Almost all of todays drivers are at or just below the limit.
 
The COR dictates the ball speed by measuring the efficiency of the impact between two colliding bodies; in this case, the driver and the ball. If this exceeds the limit at a specific clubhead speed then the club is considered non-conforming and will be placed on the non-conforming list.
 
If the COR is at the limit, the club cannot generate more ball speed than other clubs at this limit for the head speeds used to test the club. If you want to know if this club conforms to the rules, rather than wade through the listings, call the manufacturer or better yet call the USGA at 201-234-2300 and ask for the Test Center.
 
Hope this helps. And, should you purchase one of these drivers, remember to go to the gas station to fill up your driver before each round.
 
Frank
 

Increase Speed with Swing Weight?


Frank,
Thanks for your information every week. Theres nowhere else that we can get this kind of help. Keep it coming!
 
I am aware that swing weight is dependant on the weight of the clubhead in relation to the grip end, therefore my question:
 
I just went from a swing weight of D5 and D6 in my old TaylorMade clubs, with Dynamic Gold S300 shafts, to D4 in my new Mizuno irons that have a new 103-gram graphite shaft. Will my swing speed increase and affect my distance because of the swing weight reduction and'I presume'the overall weight of the new clubs?
 
' Don

 
Don,
Thanks for your comments about the weekly column. It would be good if you can get as many of your friends as possible to sign up as Frankly Friends, so we can help grow the game and persuade the USGA to consider the vast majority of golfers when making its rules changes, instead of an elite few.
 
As far as the difference in swing weight from a D6 to a D4, I can assure you that you will not be able to detect any difference in performance. Some of the best golfers in the world are not able to detect a change in performance of a two-point change. You will find a significantly greater difference in performance between the two sets of clubs than in their swing weight.
 
Swing weight is a static balance, and based on the amount of weight needed, hung from the very tip of the clubs grip end to get it to balance on a sharp edge (fulcrum) positioned at 14 inches from the end of the grip. As you can imagine, a heavier grip on your club will require less weight added to its butt end to get it to balance on the scale. So this small change will alter the swing weight
 
Similarly, if you wear a glove, this is the same as if it were part of the grip. Wearing it on your hand or wrapping it onto the grip makes no difference except to the swing weight scale. A glove on a grip (or on your hand) will decrease the swing weight of the club by about 5 points. Going a little further, wearing a wristwatch will also change the inertia of the system'equivalent to changing the swing weight of the implement'which dynamically includes your hands.
 
The bottom line is that swing weight is a good guideline in matching clubs, provided its not abused by counter weighting. Swing weight and overall weight have been successfully used for some time to match clubs, but it is a static balance and not a dynamic one as the name implies, so a couple of points difference is nothing to be concerned about from one set to another.
 
Good luck with your new set.
 
Frank
 

Please note: By submitting your question to Frank you will automatically become a Frankly Friend so you can stay up to date with his golf equipment Q&A. You may unsubscribe at any time.
 
Frank Thomas, inventor of the graphite shaft, is founder of Frankly Golf, a company dedicated to helping golfers. Frank is chief technical advisor to GolfChannel.com. He served as technical director of the USGA for 26 years and directed the development of the GHIN system and introduced the Stimpmeter to the world of golf. To email a question for possible use in an upcoming Let's Be Frank column, please email letsbefrank@franklygolf.com
 
Frank Thomas

If Park is nervous, she sure doesn't show it

By Randall MellNovember 17, 2017, 11:24 pm

NAPLES, Fla. – Sung Hyun Park says she can feel her heart pounding every time she steps to the first tee.

She says she always gets nervous starting a round.

You don’t believe it, though.

She looks like she would be comfortable directing a sky full of Boeing 737s as an air traffic controller at Incheon International Airport . . .

Or talking people off the ledges of skyscrapers . . .

Or disarming ticking bombs . . .

“In terms of golf, I always get nervous,” she insists.

Everything about Park was at odds with that admission Friday, after she took control halfway through the CME Group Tour Championship.

Her Korean nickname is “Dan Gong,” which means “Shut up and attack.” Now that sounds right. That’s what she looks like she is doing, trying to run roughshod through the Tour Championship in a historic sweep of all the LPGA’s most important awards and honors.

Park got just one look at Tiburon Golf Club before this championship began, playing in Wednesday’s pro-am. Then she marched out Thursday and shot 67, then came out Friday and shot 65.

At 12 under overall, Park has a three-shot lead on Caroline Masson and Sarah Jane Smith.

She is six shots up on Lexi Thompson, who leads the CME Globe point standings in the race for the $1 million jackpot.

She is 11 shots up on world No. 1 Shanshan Feng.

And 11 shots up on So Yeon Ryu, who leads the Rolex Player of the Year point standings.


CME Group Tour Championship: Articles, photos and videos

Full-field scores from the CME Group Tour Championship


There’s a long way to go, but Park is in position to make an epic sweep, to win the Tour Championship, that CME Globe jackpot, the Rolex Player of the Year Award, the Rolex Rookie of the Year Award, the Vare Trophy for low scoring average, the LPGA money-winning title and the Rolex world No. 1 ranking.

Nobody’s ever dominated a weekend like that in women’s golf.

It’s all there for the taking now, if Park can keep this going.

Park has another nickname back in South Korea. Her fans call her “Namdalla.” That means “I am different.” She’ll prove that if she owns this weekend.

Park, 24, isn’t assuming anything. She’s humbly aware how much talent is flooding the LPGA, how the tour’s depth was underscored in a year where five different players have reigned as world No. 1, five different players won majors and 22 different winners stepped forward in 32 events.

“I don’t think it’s quite that far a lead,” Park said of her three-shot advantage. “Two, three shots can change at any moment.”

About those nerves that Park insists plague her, even Hall of Famer Judy Rankin can’t see it.

Not when Park unsheathes a driver on a tee box.

“She’s the most fearless driver of the ball out here,” Rankin said. “I would put Lexi a close second and everybody else a distant third. She hits drivers on holes where you shouldn’t, and she hits it long and she just throws it right down there between hazard stakes that are 10 yards apart, like it’s nothing. Now, that’s a little hyperbole, but she will hit driver almost everywhere.”

David Jones, Park’s caddie, will attest to that. He was on Park’s bag when she won the U.S. Women’s Open in July and won the Canadian Pacific Women’s Open in August.

“She reaches for driver a lot because she is a good driver,” Jones said. “She isn’t reckless. She’s as accurate with a driver as she is a 3-wood.”

Park and Thompson played together in the first round. Park is eighth on tour in driving distance, averaging 270 yards per drive, and Thompson is third, averaging 274.

Thompson loves to hit driver, too, but . . . 

“Lexi hit a lot of 3-woods compared to us when we played together yesterday,” Jones said.

Jones doesn’t find himself talking Park out of hitting driver much.

“It’s really simple,” Jones said. “When you hit driver as straight as she does, why mess around?”

Count Golf Channel analyst Brandel Chamblee, a student of the swing, among admirers of Park’s abilities.

“No other swing in the game comes close to her technical perfection and elegance in my opinion,” Chamblee tweeted Friday.

Come Sunday, Park hopes to complete a perfect sweep of the LPGA’s most important awards.

National champion Sooners meet with Trump in D.C.

By Golf Channel DigitalNovember 17, 2017, 11:10 pm

The national champion Oklahoma men's golf team visited Washington D.C. on Frday and met with President Donald Trump.

Oklahoma topped Oregon, 3 1/2 to 1 1/2, in last year's national final at Rich Harvest Farms to win their second national championship and first since 1989.

These pictures from the team's trip to Washington popped up on social media late Friday afternoon:

Rookie Cook (66-62) credits prior Tour experience

By Rex HoggardNovember 17, 2017, 10:36 pm

ST. SIMONS ISLAND, Ga. – Austin Cook is a rookie only on paper. At least, that’s the way he’s played since joining the circuit this season.

This week’s RSM Classic is Cook’s fourth start on Tour, and rounds of 66-62 secured his fourth made cut of the young season. More importantly, his 14-under total moved him into the lead at Sea Island Resort.

“I really think that a couple years ago, the experience that I have had, I think I've played maybe 10 events, nine events before this season,” Cook said. “Being in contention a few times and making cuts, having my card has really prepared me for this.”


RSM Classic: Articles, photos and videos

Full-field scores from the RSM Classic


Cook has been perfect this week at the RSM Classic and moved into contention with four consecutive birdies starting at No. 13 (he began his round on the 10th hole of the Seaside course). A 6-footer for birdie at the last moved him one stroke clear of Brian Gay.

In fact, Cook hasn’t come close to making a bogey this week thanks to an equally flawless ball-striking round that moved him to first in the field in strokes gained: tee to green.

If Cook has played like a veteran this week, a portion of that credit goes to long-time Tour caddie Kip Henley, who began working for Cook during this year’s Web.com Tour finals.

“He’s got a great golf brain,” Henley said. “That’s the most flawless round of golf I’ve ever seen.”

Cook fires 62 for one-shot lead at RSM Classic

By Associated PressNovember 17, 2017, 10:26 pm

ST. SIMONS ISLAND, Ga. – PGA Tour rookie Austin Cook made a 6-foot birdie putt on his final hole for an 8-under 62 and a one-shot lead going into the weekend at the RSM Classic.

Cook has gone 36 holes without a bogey on the Plantation and Seaside courses at Sea Island Golf Club. He played Seaside - the site of the final two rounds in the last PGA Tour event of the calendar year - on Friday and ran off four straight birdies on his opening nine holes.

''We've just been able to it hit the ball really well,'' Cook said. ''Speed on greens has been really good and getting up-and-down has been great. I've been able to hit it pretty close to the hole to make some pretty stress-free putts. But the couple putts that I have had of some length for par, I've been able to roll them in. Everything's going well.''

The 26-year-old former Arkansas player was at 14-under 128 and had a one-stroke lead over Brian Gay, who shot 64 on Seaside. No one else was closer than five shots going into the final two rounds.

The 45-year-old Gay won the last of his four PGA Tour titles in 2013.


RSM Classic: Articles, photos and videos

Full-field scores from the RSM Classic


''I've hit a lot of greens and fairways,'' Gay said. ''I've hit the ball, kept it in front of me. There's a lot of trouble out here, especially with the wind blowing, so I haven't had to make too many saves the first couple days and I putted well.''

Cook has made the weekend cuts in all four of his starts this season. He earned his PGA Tour card through the Web.com Tour, and has hired Gay's former caddie, Kip Henley.

''With him being out here so long, he knows everybody, so it's not like I'm completely the new kid on the block,'' Cook said. ''He's introduced me to a lot of people, so it's just making me feel comfortable out here. He knows his way around these golf courses. We're working really well together.''

First-round leader Chris Kirk followed his opening 63 on the Plantation with a 70 on the Seaside to drop into a tie for third at 9 under with C.T. Pan (65) and Vaughn Taylor (66).

Brandt Snedeker is looking strong in his first start in some five months because of a sternum injury. Snedeker shot a 67 on the Plantation course and was six shots back at 8 under.

''I was hitting the ball really well coming down here,'' Snedeker said. ''I was anxious to see how I would hold up under pressure. I haven't played a tournament in five months, so it's held up better than I thought it would. Ball-striking's been really good, mental capacity's been unbelievable.

''I think being so fresh, excited to be out there and thinking clearly. My short game, which has always been a strength of mine, I didn't know how sharp it was going to be. It's been really good so far.''