Connect with us

Opinion & Analysis

The key to putter fitting? Know your roll

Published

on

This is the second installment of a four-part series from Modern Golf on putter fitting and the Quintic System. 

Find a busy practice putting green, and it’s almost guaranteed that you’ll see at least a few golfers obsessing over the motion of their putting stroke. They’re usually the ones who are using some kind of training aid to help them groove their stroke in a certain way.

For many golfer, it can be time well spent. But what they might not know is that the way their putter moves is only half the equation to good putting. Did you know that two putts with the same clubhead speed can travel significantly different distances? Did you also know that most golfers actually do a good job of consistently swinging the putter through at their desired speed? So why do so many golfers have problems with their distance control? The other half of the equation is controlling what is called their ball roll.

How do golfers control how their ball roll? How should the ball be rolling? It is a very difficult question to answer without using high-speed cameras and motion capturing. Using a system called Quintic, we provide golfers the knowledge and data they need to putt their best. Understanding this data will improve your game.

The image below shows what an ideal 8-foot putt looks like on our Quintic System. 

Ideal Putt

Click the image to enlarge it.

Forward Rotation

As you can see, the ball instantly started to rotate forward off the putter face. A ball that has negative initial ball roll, or “backspin,” will lose speed and can deflect offline. Having the ball rotate forward off the face will give players better distance control with their putts because the ball will lose less energy and stay on its intended line longer. This will aid the ball in rolling over debris and other imperfections on the green such as ball marks, spike marks, etc.

Having anywhere from +25 rpm to +50 rpm initial ball roll is ideal. Any higher and the ball will roll out longer because it will be carrying more momentum. This can make downhill 5 footers scarier than they already are. With an rpm under +20 rpm, the ball doesn’t carry as much momentum to the hole.

Launch

The ball was launched at about 1.75 degrees. An ideal launch angle on most greens is between 0.75 degrees and 2 degrees. Much like a driver, controlling launch has a big influence on how far the ball will travel. That is because on the green, a ball will sit in a small depression as a result of gravity. The ball needs to be launched out of this depression — and not too high or too low. Optimal launch should change depending on the blade length of the grass and the type of putting surface. On lush greens with a longer blade length, the ball will sit in a deeper depression. On firm greens with a short blade length, the ball will not sit in such a deep depression, and for that reason not as much launch is required.

The image below shows what happens to a putt that has a launch angle that is too high.

High Launch

Click the image to enlarge it.

Zero Skid

Minimal skid is ideal. On a well struck putt, there should be less than 10 percent skid for the total distance the ball travels. So on an 8-foot putt, ideally there should be less than 10 inches of skid (see first image). Once “zero skid” occurs, the ball starts rolling on top of the grass smoothly. When there is too much skid, the result is a loss of distance and ball speed. Every time the ball bounces and strikes the putting surface it loses energy — energy that has been factored into your putt for speed and distance. These putts tend to come up short and offline, and this often happens with long putts or lag putts.

Below are images of a “dew board.” The board simulates putting through an early morning dew where it is easy to see launch and skid. There are two visible lines on the board. The putt that has a flat and consistent line has optimal launch and minimal skid. The putt that looks dotted or chattered has launched too high, increasing the zero skid parameter. The dots are where the ball has struck the putting surface and continues to hop until it reaches zero skid.

IMG_2347

Every putt, at some point, reaches zero skid. Reducing the amount of time it takes for the ball to reach zero skid will ensure that the ball will lose minimal energy and carry more momentum to the hole.

Impact Ratio

This refers to how efficiently clubhead speed is converted into ball speed. For all of those Trackman users out there, this is the same as smash factor. It is a simple calculation: ball speed divided by clubhead speed. Controlling the speed that the ball comes off the face is crucial. This is achieved when the center mass of the club head makes contact with the center mass of the golf ball. Any off-center strike results in a loss of ball speed and face deflection, causing the ball to roll offline with less speed.  

We’ve all hit full shots that weren’t solidly struck and they come up short of our target.  The exact same thing happens when we don’t hit a putt solid, but it’s much harder to feel the mishit because the clubhead speed is much slower through impact with a putter. This is where most golfers struggle.

The face of the putter also needs to be square to the path of the club. Otherwise, you’ll see a glancing blow that also reduces ball speed. The type of putter a player uses also has an effect on ball speed. Putters with softer inserts reduce ball speed because of reduced energy transfer from the club head to the ball. To illustrate where you strike the ball on the clubface, spray the face of the putter with Doctor Scholl’s foot spray. It will show you where the ball is making contact with the face, and has minimal effect on ball speed and friction.

Certainly there are other parameters to consider, but this article should provide golfers with a general concept that they may not have considered in the past. Without knowing what the ball is doing, it is very difficult to teach someone proper putting mechanics. Players who have a better understanding of how the ball is rolling have a better chance of improving their game on the greens. Therefore, go get fit for a putter and KNOW YOUR ROLL.

Call or email to book your appointment today at Modern Golf.

Related

Your Reaction?
  • 95
  • LEGIT36
  • WOW17
  • LOL0
  • IDHT0
  • FLOP2
  • OB1
  • SHANK10

Modern Golf was founded in 2011 and has established a reputation as Canada’s Premier golf club-fitting experience. With a brand agnostic approach to club-fitting, a 13,000 square foot state-of-the-art headquarters including a PGA Tour caliber workshop, Modern Golf can provide a demonstrable improvement to your golf game. Regardless of our customers’ age, gender, or skill level, our highly trained club-fitters and experienced club builders can custom tailor our customers’ golf equipment to produce improved on-course results. The Modern Golf team is excited to share their expertise with the GolfWRX Community. www.moderngolf.ca

1 Comment

1 Comment

  1. Scooter McGavin

    Feb 27, 2015 at 11:20 am

    There is some good info on this article. I also agree that people can tend to overlook putter roll. I’d be curious for a little more info that goes into greater depth about its role in the fitting process with respect to different models’ grooves, inserts, centers of gravity, etc. and how it would directly affect one’s putter choice. Cheers!

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Club Junkie

Club Junkie: Reviewing TaylorMade’s P770 Irons and SuperStroke’s Wrist Lock Putter Grip!

Published

on

Finally, I have had a full set of TaylorMade P770 irons out on the course for the last few weeks. The P770 takes a bunch of DNA from the larger P790 and packs it into a smaller size. Don’t be fooled, the smaller size still gives you a bunch of distance and forgiveness! SuperStroke’s Wrist Lock putter grip is designed to help add stability and consistency to your putting stroke. It really does give you the feeling that the putter is locked into your stroke and won’t go anywhere.

Your Reaction?
  • 0
  • LEGIT0
  • WOW0
  • LOL0
  • IDHT0
  • FLOP0
  • OB0
  • SHANK0

Continue Reading

Opinion & Analysis

The Wedge Guy: My thoughts on single-length irons

Published

on

One of the bigger stories in golf equipment the past few years – thanks to Mr. De Chambeau – is the development of single-length irons. So, are they right for you or not? That’s a question only a fair trial can answer, but let me offer some thoughts on how your set make-up might look if you do take that direction.

First of all, the concept is not about single-length clubs — the conversation is about single-length irons. No one is playing a driver or fairway woods at the same length as their irons. Probably not even the hybrids. The putter is typically not either. So, the question is where in the set does the “single-length” begin and end?

I’ve long espoused the concept that your set of clubs (excluding the very specialized putter) should be divided into three sub-sets: Distance Clubs, Positioning Clubs, and Scoring Clubs. And generally speaking, these subsets each cover a specific range of lofts.

The Distance Clubs are those up to 20-25 degrees or so. This subset begins with your driver and encompasses your fairway woods and maybe your lowest loft hybrid or two. Your goal with these clubs is to move the ball “on out there” and put you in a place for your “positioning shot.”

The Positioning Clubs then begin after that highest loft Distance Club and take you up to 38 to 40 degrees of loft. Generally speaking, this subset would begin with your 3 or 4-iron or hybrid and go up to through your 7- or 8-iron. The goal with these clubs is to set up a reasonable putt or chip so you can get down in no more than 2-3 shots. My opinion is that it is only within this subset that “single-length” might serve you.

The Scoring Clubs – those over 38-40 degrees of loft — are the ones with which your scores will likely be determined. Long ago, I wrote several posts about the “round club mindset” when 8-irons had a more curved topline than the seven – a distinctly different look, and those 8-irons were 38 to 40 degrees. These are the clubs designed for putting the ball close enough for a makeable putt, hopefully, more often than not.

So, most conversations about single-length irons should be limited to that subset of “Positioning Clubs,” from your longest iron through that iron of 38-40 degrees. While many golfers may not see the distance separation between clubs that you would ideally like to have in that subset, others might. I’ve long observed that the distance a club can be hit is a combination of loft AND club shaft length. I just don’t see how you can get the range of distances from the longest to shortest in the set by changing loft only. I have tried several of these sets and just do not experience the distance differentials I want from that subset in my bag.

But I can certainly assure you that you simply cannot be as accurate with wedges that are 37 or 38 inches in length as you can with those clubs being 35 to 36 inches. It’s simple golf club physics. With very few exceptions, the shorter the club, the narrower your distance dispersion is going to be.

Consider that a “wide” shot with a 45-inch driver might be 30-40 yards off-line, while even the worst “wide” shot with your 35-and-three-quarter-inch pitching wedge is not likely to be more than 15 yards offline. In between, your lateral dispersion is progressively narrower as the shaft length is reduced.

So, I just cannot see why anyone would want to make their wedges the same length as their 5- or 6-iron, 37.5 to 38 inches, and give up the naturally more accurate dispersion that the shorter shaft delivers.

I am looking forward to hearing from those of you who have tried single-length irons and longer wedges to share your experiences.

Your Reaction?
  • 76
  • LEGIT11
  • WOW4
  • LOL2
  • IDHT3
  • FLOP3
  • OB1
  • SHANK18

Continue Reading

Golf's Perfect Imperfections

Golf’s Perfect Imperfections: Sharing some time with one of the best PGA Professionals in America

Published

on

Meet Jimmy Stewart. From his early childhood junior days in Singapore and Thailand, to golf course and driving range operator in California. We talk Turkey, where the game was, where it is and to where it’s going.

 

Your Reaction?
  • 0
  • LEGIT1
  • WOW0
  • LOL0
  • IDHT0
  • FLOP0
  • OB0
  • SHANK0

Continue Reading

WITB

Facebook

Trending