Equipment

Grooves on Grooves: Callaway launches new Mack Daddy 4 wedges

Published

8 years ago

Jan 9, 2018

“Let’s do something else,” said Callaway’s Chief Designer and wedge-making legend, Roger Cleveland when talking about designing the new Callaway Mack Daddy 4 wedges.

And something else, he did.

Callaway’s Mack Daddy 4 wedges, which the company officially launched on Tuesday, use a new “groove-in-groove” technology that features raised micro-ridges between the main grooves on the faces. Rather than these ridges going below the surface, however, they’re actually “surface positive,” as Callaway explains it; that means they protrude above the surface. Therefore, the grooves and micro-ridges create more points of contact for the golf ball, and they create additional friction to induce more backspin.

In fact, Cleveland himself was so excited about the design, he stood up during our interview and drew out the design on a whiteboard. Professor Cleveland, if you will.

Using new, proprietary cutters, it takes 12 minutes per head to cut the grooves, according to Cleveland. Using a progressive design throughout the set, the lower-lofted wedges — 52 degrees and below — use “20D” grooves, while higher-lofted wedges — 54 degrees and above — use 5D grooves. That means, overall, the higher-lofted wedges are designed to create more spin for greater control around the greens, and the lower-lofted wedges will behave more like your shortest iron. Each of the wedges also have an added groove — Callaway calls it a “nip it” groove — near the leading edge that’s designed to induce more spin when you catch the ball a bit thin.

Maybe the new groove design is why so many PGA Tour players are switching into the wedges so quickly. Sergio Garcia already won with them in the bag at the Andalucía Masters, and Brendan Grace won using them at the Nedbank Golf Challenge. In the 2017 RSM Classic, in fact, there were 30 Mack Daddy 4 wedges already in play.

Grooves aren’t the only difference you’ll notice in the new Mack Daddy 4 wedges, however. Based on Tour feedback, Callaway has designed the wedges with a more compact shape, straighter leading edges, tighter leading edge radii, and slightly more offset throughout the line, according to Callaway.

The MD4 wedges have a progressive offset in the set in order to better blend looks-wise into your set of irons.

“Tour pros like only a subtle amount of leading-edge radius,” said Cleveland, according to a press release. “In the Mack Daddy 4 we gave them enough to make a performance difference while still pleasing the eye.”

As part of the Mack Daddy 4 wedge line, there are now 4 grinds: C-grind, S-grind, W-grind and a new X-grind that has a narrow sole but with high-bounce. Here is the rundown of what each of the grinds delivers, according to Callaway:

C-Grind: “Increased relief, especially at the heel, making it easier to play shots with the face open. Ideal for medium-to-shallow attack angles and/or firm course conditions. 8-degrees of bounce.”
S-Grind: “Medium-width sole with slight chamfer at the back and moderate heel relief to keep the leading edge low through impact, promoting solid contact on open-faced shots. 10-degrees of bounce.”
W-Grind: “Sole is wider at the center and toe and narrower at the heel, with moderate heel relief and generous front-to-back camber. That prevents digging without increasing bounce, and keeps the leading edge close to the turf at impact. Great for open-faced shots. More versatile than our previous W Grind. 12-degrees of bounce.”
X-Grind: “The newest grind features a narrow, high-bounce crescent sole, with the low point near the front. Excellent for moderate-to-steep attack angles and medium-to-soft course conditions. 12-degrees of bounce.”

The Mack Daddy 4 wedges, which are made from 8620 carbon steel, come in both Platinum Chrome and Matte Black finishes. Like the previous Mack Daddy 3 wedges, the Mack Daddy 4 wedges have four weight ports, and they have milled-aluminum medallions that progressively raise CG (center of gravity) as loft increases to help dial in ball flight, spin and feel appropriately for each loft.

Available lofts include 46, 48, 50, 52, 54, 56, 58, 60 and 64-degree options, totaling 21 loft-bounce combinations. The wedges will come stock with True Temper’s Dynamic Gold Tour Issue 115 shafts and Lamkin UTx grips. Mack Daddy 4 wedges will be in stores on January 26 and will sell for $149 apiece.

See what GolfWRX members are saying about the Mack Daddy 4 wedges in our forums.

Related Topics:Callaway featured

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Andrew Tursky

He played on the Hawaii Pacific University Men's Golf team and earned a Masters degree in Communications. He also played college golf at Rutgers University, where he graduated with a Bachelor of Arts in Journalism.

11 Comments

HDTVMAN

Jan 10, 2018 at 4:02 pm

I like the look, but will stay with my PM Grind wedges. I don’t understand why more wedges do not have grooves across the entire face, like the PM Grind. Even if I miss off the toe, the shot is still acceptable.

Reply Report comment
Uhit

Jan 9, 2018 at 4:38 pm

Funny, the Bridgestone Tour B wedges have also that “new “groove-in-groove” technology”,
already mentioned in a press release in august last year:

http://www.bridgestonegolf.de/content/node_15813.htm

and already reviewed on WRX in november:

http://www.golfwrx.com/forums/topic/1563642-bridgestone-tourb-xw-1-wedges/

Reply Report comment
- Blop
  
  Jan 9, 2018 at 9:42 pm
  
  Cleveland/Srixon have been using this for a while now.
  
  Reply Report comment
stan

Jan 9, 2018 at 10:38 am

These hi-tech wedges are only effective for tour players with higher speed swings. Only the top 1% of golfers, which includes gearhead wannabes, will entertain buying these contraptions.
Btw, in the 1967 book Search for a Perfect Swing (SPS) they tested a smooth grooveless wedge and found insignificant differences in performance compared to a grooved wedge. The testing was done under scientific condition of that time so perhaps the results would be different with these Cally wedges with the fancy face milling.

Reply Report comment
- Paul G
  
  Jan 9, 2018 at 11:13 am
  
  I think wedges are one of the few areas of most amateur golfers games that can be in any way like a Tour player. Not the full swing shots, but those around the green are well within the reach of a normal golfer. If you look at a 30 yard pitch, the speed a Tour player uses and an amateur will be very close (providing they are playing the same kind of shot) as the goal isn’t about maximum yardage but the correct yardage. Of all the gear in your bag, wedges and your putter are the clubs that allow you to play a “tour players” game as they don’t rely on physical strength and speed to work
  
  Grooves are useful once there is anything in the way of the contact between ball and club, so a grooveless wedge is fine from a perfect clean lie, but poor everywhere else, hence all wedges have grooves.
  
  Reply Report comment
- Huh?
  
  Jan 9, 2018 at 11:28 am
  
  Stan – Where or how are you coming up with this nonsense?
  
  Reply Report comment
- Dan
  
  Jan 9, 2018 at 1:31 pm
  
  The groves are for poor lies. A grove wedge in the rain removes about 2 tsp of water from between the club face and ball. The groves also improve spin out of the rough.
  
  Reply Report comment
  - stan
    
    Jan 9, 2018 at 5:28 pm
    
    So, if you hit different types of wedges off a clean tight lie there would be no significant difference between their performance results?
    
    Reply Report comment
    - The dude
      
      Jan 9, 2018 at 8:27 pm
      
      I buy that….isn’t there an old article that proves that??
      
      Reply Report comment
- dlygrisse
  
  Jan 12, 2018 at 11:59 am
  
  Flawed study.
  
  Grooveless wedges only perform good under perfectly clean conditions. Like off a turf mat and a perfectly dry/clean ball. If any moisture gets on the ball or clubface the whole thing goes haywire.
  
  Wedges are designed for slower swing speeds, unlike drivers. Along with putters they are the most relevant.
  
  Reply Report comment
Travis

Jan 9, 2018 at 10:23 am

Groove-ception

Reply Report comment

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Equipment

Slab city on the Korn Ferry Tour — Lead Tape Report

Published

16 hours ago

Jun 10, 2026

Andrew Von Lossow

This week, we have our Tour Photographer, Greg Moore, on the ground at the OccuNet Classic at Tascosa Golf Club in Amarillo, Texas, for the 14th event of the 2026 Korn Ferry Tour season. With that, we see some great things in the Lead Tape Report as we roll into Amarillo.

Joel Thelen

Monday Qualifier, Joel Thelen is in the field this week. He has played on the Korn Ferry Tour for a full season in 2023, and he is back in action this week. A couple of clubs caught my eye this week in his bag.

First off: His trusted Titleist 816 H2 hybrid. This club came out in October of 2015, and it still remains strong in the bag. Also, take a look at this Odyssey White Hot OG 7, putting a capital S in the 7S model. This custom neck has some impressive lean for an arm-lock-style putter. The bottom of the putter is covered in tape for optimal weighting.

Mitchell Meissner

Taking a look at Mitchell Meissner’s bag this week, we have some great lead tape coverage. Top to bottom working from fairway metals, irons, and wedges. We can see on the short irons and wedges that there is tape at the base of the grip, adding a little counterbalance. Along with that, some tape on the short irons and wedges as well. Moving to his putter, he rolls the Odyssey 7 Bird putter. Meissner putts left-handed and strikes the ball right-handed.

Whats in the Bag

Bud Cauley WITB 2026 (June)

Published

16 hours ago

Jun 10, 2026

Will Schube

Bud Cauley had >14 clubs in his bag when photographed prior to the Memorial Tournament.

Driver: Titleist GTS2 (8 degrees)
Shaft: Fujikura Ventus Black 6 X

3-wood: Titleist GTS3 (15 degrees, B1 SureFit setting)
Shaft: Mitsubishi Chemical Tensei 1K Pro Red 70 TX

7-wood: Titleist GTS3 (21 degrees, D1 SureFit setting)
Shaft: Mitsubishi Chemical Tensei 1K Pro Red 80 TX

Irons: Titleist U505 (3), Titleist 620 MB (4-9)
Shafts: Fujikura Ventus Black HB 8 X, True Temper Dynamic Gold Tour Issue

Wedges: Titleist Vokey Design SM11 (48-10F, 52-12F, 56-14F), WedgeWorks (60-K*)
Shafts: True Temper Dynamic Gold Tour Issue S400

Putters: Scotty Cameron Tour Prototype, Scotty Cameron GOLO 6.3 Prototype

Grips: Golf Pride Tour Velvet Align

Ball: Titleist Pro V1

See more in-hand photos of Bud Cauley’s clubs here.

Equipment

Name every set of irons you’ve owned – GolfWRXers discuss

Published

16 hours ago

Jun 10, 2026

Will Schube

In our forums, one user has offered up a prompt for the true sickos, inviting fellow forum members to share every set of irons they’ve ever owned. As to be expected, this is a lengthy forum topic.

@Lamosteve began:

Can you name every set of irons you’ve owned? Here’s mine

Spalding Dots
Spalding Eclipse
Ram Lazer FX
Lynx Parallax
Mizuno EZ Comp
Ben Hogans
Cleveland CG Red
Taylor Made R9s
PING i20
PING iE1
Taylor Made M6

Our members in the forum have been offering up their own collections. Here are a few posts from the thread, but make sure to check out the entire discussion and have your say at the link below.

macedan: “Started with a hand-me-down Golden Bear set from my brother when I was in high school, never really played more than once a year or got into the game until about summer of 2017. First purchased a set of Cleveland CG4’s (I actually really miss this set sometimes, soft & not terribly large for a GI iron), moved into Nike Vapor Fly’s by the end of the year. Those lasted until spring of 18 when I decided I wanted new, so I traded them in for TM Rbladez. Honestly, although I liked the Rbladez, poor decision on my part, I think this was really about the only time so far that after a week or two I was kicking myself for not staying with what I had. Rbladez stayed with me until late last summer when I switched to P790’s and (knock on wood) I am hoping this will be my longest lasting set.”
JimmyC59: “MacGregor Jack Nicklaus Triple Crown. Palmer The Standard. Still play these.”
jgrzask: “Tommy Armour 845u
Mizuno MP-32
Mizuno MP-33 (2 sets)
Bridgestone J33cb – still own
Srixon i-302 (2 sets) – still own
Tourstage X-Blades – still own
Mizuno Hot Metal – still own
Nike Forged Blades – still own
Titleist 714 AP1 – still own
Cobra Forged SS – still own”

Entire Thread: “Name every set of irons you’ve owned.”