Which Iron is Right for You?

All golfers are aware that there are different genres of irons available to them, yet many are not aware of what the actual differences might be. This article is designed to help you sift through some current offerings, give you insight into the differences in ball flight you might expect and thus make a selection that better suits your game.

With this in mind I gathered three current models sent to me by my friends at PING: the new G440, the very new i240 and my current gamer, the Blueprint S. I used the 7i from each set and each club has the same shaft, grip, length, flex, swing weight and lie angle. This way the differences in ball flight can only be attributed strictly to the differences in the clubhead.

While each of the 7 iron heads have standard lofts, the G440 has 29º of loft while the i240 and the Blueprint S each have 33º of loft. Yes, modern day, larger club head models have lowered lofts to aid in helping the ball fly further, but that lower loft is also in place to manage trajectory concerns. The “flex-face” technology increases ball speed, reduces spin and increases height. The decrease in loft serves a dual purpose of increasing distance and ball speed, but it also deters the ball from flying overly high.

The test involved hitting 12 shots with each club in randomized three-ball increments. I used a very low tee for all shots in order to keep grass and debris from influencing the outcome. Once I had hit 12 shots with each club I culled the worst 4 shots with each club to eliminate any outliers that could corrupt the data. All the data was captured using TrackMan in normalized mode which keeps any temperature, altitude or wind effects out of the data. The blue shots were the Blueprint S, the red shots were the i240 and the purple shots were the G440.

PING G440

Angle of Attack -6.1, Dynamic Loft 19.9º, Club Speed 83.6 mph

Spin Rate 4956 rpm, Ball Speed 121.7 mph, Carry 177.2 yds, Peak Height 88.4 feet, Land Angle 44.5º

The ball stopped 10.8 yards after landing

PING i240

Angle of Attack -6.2, Dynamic Loft 21.3º, Club Speed 84.3 mph

Spin Rate 5637 rpm, Ball Speed 118.1 mph, Carry 167.1 yds, Peak Height 87.5 feet, Land Angle 45.7º

The ball stopped 9.8 yards after landing

PING Blueprint S

Angle of Attack -6.1, Dynamic Loft 21.7º, Club Speed 83.5 mph

Spin Rate 5710 rpm, Ball Speed 117.3 mph, Carry 165.4 yds, Peak Height 87.7 feet, Land Angle 45.9º

The ball stopped 8.3 yards after landing

What can we take away from this test?

  • Any interesting note was that while the G440 had 4º less loft I only delivered the clubface with +/- 1.5º less loft relative to the i240 and the Blueprint S. The peak height was virtually identical with all three models.

  • Modern day “face-flex” (my term) technology makes the ball fly further, with less spin and while the stopping power will be decreased, the gains in distance for those in need far outweigh any negative effects.

  • In my professional opinion anybody who swings a 7 iron at 75 mph or faster does not need the distance help a “face-flex” iron provides. You currently hit the ball far enough to sacrifice the distance gains for improved predictability and stopping power.

And that’s the big question: do you need more consistency and improved ability to stop the ball once it lands? Or is distance more important? Personally, I will be switching to the new i240 iron (5-UW). I like the look and feel of the clubhead and know that the slight bump in forgiveness from the Blueprint S model will serve me well.

As you decide which direction to take before purchasing your next set of irons, please consider some of the information I have shared here. I hope this info helps you play your best and experience more joy out on the golf course.

(Many thanks to Peter Egazarian and Farmington CC outside Charlottesville, VA for allowing me to teach and conduct my test.)

To Mill or Not to Mill?

My three test subjects...

I must be honest and write that I did this test in the hopes of proving a few people wrong. Instead, I have proven myself wrong. With my research for the Wedge Project I put my "stake in the ground" on what I believed regarding milling on the clubface. All the tests I performed using TrackMan and various wedges always showed that a wedge without a milled face generated less spin (albeit slightly) than wedges with the fine "corduroy" look of milling between the grooves.

I looked up a person I believe to be very knowledgeable when it comes to equipment, Tom Wishon. I read all that he had to say on the matter of grooves and surface roughness and his findings aligned with the results I was seeing in my tests.

Based on what I had available to me I had done my homework and had placed my "stake in the sand" in favor of milling on the clubface. It just made sense to me. Until this....

David Neville and the crew from Vokey Wedges have been kind enough to let me have access to a few test wedges. They sent me six wedges of which I chose to use three for this test.

No grooves and no milling

No grooves and milling

All three wedges have the same grip, shaft (DG S200), length, grind (M) and a stated loft of 56 degrees. I did not check their weight, actual loft, lie angle or bounce measurements. I hit 60 shots off a mat (to eliminate ground interference) with the no groove, no milling club and 60 shots off a mat with the no groove, milled club. I then eliminated the 15 lowest spinning shots to leave the remaining 45 highest spinning shots with each club. I used slightly used ProV1X balls and attempted to carry each shot 50 yards. I wiped or cleaned the clubface between every 3rd or 4th shot. Here are the results:

Titleist SM4 TVD M 56 degree Chrome Fly Cut without Grooves or Milling

Titleist SM5 56.10 M 56 degree Raw Surface without Grooves/Milling Only

As you can see the club that had surface milling or roughness actually generated less spin - 6009 RPM to 6229 RPM. While the difference between the two is negligible and most golfers would have a hard time telling the difference between the ball flight of one versus the other (myself included), the result is significant to me in that I firmly believed the outcome would be reversed.

Keep in mind this is a test involving one golfer hitting a limited number of shots to one distance. The results might be a slightly different with multiple golfers at different distances, but I don't believe different enough to sway the outcome of this test.

I recently posted this quote by Martin Palmer on Twitter: "The secret to mastery in any field is to forever be a student." Today my "stake in the sand" moved - I was a student and I learned something. I think it is vital as a coach, or even as a golfer, to place your "stake in the sand" and firmly believe in a method, approach or theory. Stand by it and argue in its favor. That is, until you uncover sound evidence or reasoning against your viewpoint - then you pick up your stake, admit you were wrong and adjust your approach.

As a point of interest I wanted to see how a standard clubface might interact with the ball. I hit 25 shots (keeping the best 20) with the Titleist SM4 TVD M grind that has 17 standard grooves and a milled face. Here are those results:

Titleist SM4 TVD M 56 degree Black Oxide 17 Grooves with Surface Milling

As you can see this clubface with both grooves and surface roughness generated the highest spin rates of all three clubs. This leads me to believe that grooves play a larger, more important role on cleanly struck shots than I originally thought.

As I continue to learn and work towards providing my students with what I believe to be the best current information and knowledge available I know that I will continue to be wrong. The blessing is that each time I am wrong I will learn, adjust and be less wrong than I was before.

From Slicer to Bomber

An Average Slicer Tee Ball The above TrackMan screenshot indicates a very typical pattern for the slicer - an overly inward club path (-15.2 degrees out to in) along with a clubface angle that is open/right of where the clubhead is travelling (9.9 degrees). This package results in shots that invariably launch left and curve aggressively right, often shaping across the target line. The end result is a far from optimal tee shot coupled with a healthy fear of any shot that leaks too far into right field!

The video below demonstrates what I did with the "owner" of the slice illustrated above. I have had tremendous success with this technique - primarily, I believe, because it taps into a golfer's instinct that screams - in order for my ball to not leak right I must swing as much to the left as possible. Essentially the drill gives the golfer a reason, something they've never had, to swing to the right. Take a look....

 

  • Tilt the face down 30 degrees (1 hour)
  • Take normal grip
  • Adjust shoulders and arms to square the face at address
  • Swing out to right field

After working on this drill for a while the golfer started to get comfortable and gain a measure of confidence that the ball actually would work back to the left.  This is what happened...

From Slicer to Bomber...

As you can tell from the above numbers the golfer has hit this shot more 55 yards longer. Part of that (15 yards) is due to an increase in speed, but as you can see - this player is now swinging from in to out, is hitting far less down on the ball, has substantially less spin and were it not for a slight heel side strike this would have been even longer.

These screenshots were taken during the course of a standard one hour lesson. They indicate an average shot from the player before the change and after. The golfer hit shots that were worse and better than both examples shown. Unfortunately an increase of 55 yards is not normal, but every little bit helps...!

The Hot Drivers and Shafts for 2013

It's always nice to get an unbiased opinion from an expert. As a result I recently spent some time with friend and clubfitting guru Ian Fraser from Modern Golf in Toronto Canada, discussing what he deemed to be the top driver and shaft options available for 2013. Ian has no affiliation with any one club or shaft manufacturer so I really value his opinions. Here are his selections for the top shafts available this year:

UST Mamiya Attas 4U

  • higher launch and low spin
  • stronger mid-section helps to increase ball speed

Graphite Design Tour AD BB

  • BB - blue bullet
  • designed to produce less spin with a lower launch

Fujikura Fuel

  • designed with feedback from ENSO technology
  • lower launching and lower spinning shaft
  • excellent price point

I also wanted to hear Ian's take on the new crop of drivers that have been on the market for a few months now and he had some interesting things to say. Here are his choices:

Titleist 913 D2/D3

  • improved design and ball speed over the 910 series
  • D2 and D3 different in size, yet similar in spin rates

TaylorMade R1

  • massive adjustability with very high ball speed
  • slightly heavier than the R11S

Ping G25

  • highest MOI of any driver available and best paint job!
  • slightly less spin and higher ball speed than the G20

I suppose my optimal driver would one that had the looks of the Titleist 913 D3, the stability and matte black finish of the Ping G25 along with the adjustability and ball speed of the TaylorMade R1....one can dream!

Please be aware that going out and simply purchasing and combining one of the above options might not be the best thing for you. I would recommend getting with a professional clubfitter who uses TrackMan technology to find the appropriate head and shaft match for your particular swing. You should be looking for the optimal launch and spin characteristics that match your swing speed.

Read THIS to know where you should be launching and spinning the ball based on your current club speed.