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Grooves on Grooves: Callaway launches new Mack Daddy 4 wedges

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“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.

Related: For more insight from Roger Cleveland himself, click here to listen as he joins our 19th hole!

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.

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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

11 Comments

  1. 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.

  2. 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/

    • Blop

      Jan 9, 2018 at 9:42 pm

      Cleveland/Srixon have been using this for a while now.

  3. 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.

    • 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.

    • Huh?

      Jan 9, 2018 at 11:28 am

      Stan – Where or how are you coming up with this nonsense?

    • 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.

      • 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?

        • The dude

          Jan 9, 2018 at 8:27 pm

          I buy that….isn’t there an old article that proves that??

    • 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.

  4. Travis

    Jan 9, 2018 at 10:23 am

    Groove-ception

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Forum Thread of the Day: “New Mitsubishi AV shafts”

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Today’s Forum Thread of the Day showcases new Mitsubishi AV shafts which have caught many of our member’s interest. While speaking in the thread, Mitsubishi Chemical shared some details to WRXers on what they can expect to see soon:

“We are working on bringing 2nd Gen Tensei product to market – this is the first week of PGA Tour testing.

Be sure to stay tuned for more information towards the beginning of 2020!”

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.

  • AdamStoutjesdyk: “I’m already a huge fan of the Pro White, I can’t wait to see how these look and perform in person!”
  • ForTourUseonly: “Please make an Orange!”

Entire Thread: “New Mitsubishi AV shafts”

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Honma launches new XP-1 Series driver, fairway woods, and hybrids for 2020

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new 2020 Honma Driver

For 2020, Honma Golf is launching the all-new XP-1 line of clubs comprised of an entire family holistically designed to help players maximize forgiveness and get the most out of their games with one set. The new Honma XP-1 drivers, fairway woods, and hybrids, all the way to irons, is a new direction for the premium Japanese company that brings together ultimate craftsmanship with performance.

The highlight of the XP-1 line from Honma is the fact that they were designed from top to bottom to work as a comprehensive set of tool to achieve maximum performance. The technology in the metal woods flows from the driver to the hybrids with a seamless transition that creates consistency for feel and looks for the player.

Honma XP-1 driver

new 2020 Honma Driver

New 2020 Honma Golf Driver

Honma is known for its dedication to quality and craftsmanship, and every part of the XP-1 line was developed with the golfer in mind to both look appealing and perform to the highest standards. The XP-1 driver packs a lot of technology into a very classic looking club, and we’re here to take you under the hood—or in this case, the carbon fiber crown—to show you how it can help you hit better shots.

2020 Honma XP1 Driver toe

Honma XP-1 Driver Toe

It starts with a tour-inspired look from address, designed to inspire confidence for any level of golfer. Underneath ther gloss black crown, there is a lot of technology to generate faster ball speeds around the entire face and help get you dialed into the right setting. Speaking to the crown, it’s made from ET-40 fiber, making it one the lightest in golf. This weight savings helps engineers relocate an additional 15g of mass around the head towards the heel for increased MOI and greater ability to help players close the club face more easily.

Flip the driver upside down, and we have a lot more going on with the sole than initially meets the eye. Honma is introducing a new double slot in the sole for increased ball speed across a much larger area of the face. What starts off smaller in the middle increases in width and depth as it reaches towards the heel and the toe of the club. These slots, along with improved MOI, keep ball speeds up and misses closer to the intended target. The last part of the equation: How these wider parts of the face, flex around the more narrow middle to also increase gear effect—think of it like one more way to help the bigger misses stay in play.

New 2020 Honma Driver XP1

2020 Honma XP-1 Driver sole and shaft adjustment connection

The last piece key piece of technology in the XP-1 driver head is exclusive to Honma—the adjustable hosel that changes face angle, lie, and loft, but never changes the orientation of the shaft. This gives the player or fitter the ability to truly dial in hosel settings without having to worry about the constantly changing of the grip orientation. This, according to Honma, also keeps the shaft spine in the ideal location for consistent performance.

Honma 2020 xp1 driver shaft

Honmq Vizard 43g shaft

Honma is the only manufacturer that produces its own shafts from start to finish in house, and the XP-1 is getting its own custom-designed and built shafts to complement the technology built into the heads. The Vizard stock shafts are engineered to produce a smooth feel that promotes faster clubhead speeds, yet also remain extremely stable. For the XP-1 driver, the matching Vizard shafts will come in weights of 43g, 53g, and 63g, and flexes from senior to stiff.

Honma XP-1 fairway woods

The XP-1 woods bring the same level of craftsmanship and technology as the drivers to a club designed for use both off the tee and off the fairway.

New for 2020 Honma XP-1 Fairway wood

New for 2020 Honma XP-1 Fairway wood

The Honma XP-1 3-wood uses the same weight-saving ET-40 crown to position a large amount of the club’s total mass low and on the sole for greatest possible launch and spin consistency. The 3-wood is the second-lightest club in most players bags by total weight and head mass, and unless you are carrying a second driver, it’s also the second-largest by volume. By using the carbon crown designers get everything they can from the other technologies including the double slot sole and thin fast face without having to sacrifice the overall design of not just the head but the entire club.

New Honma XP-1 3 wood crown fairway

Honma XP-1 3 wood crown

The XP-1 fairways also include a 5  7-woods, but with the smaller volume of the heads and the reduced crown size, using a carbon crown would actually increase the mass higher in the head, so they instead utilize an extremely thin high strength steel crown.

New Honma 53g Vizard Fairway Shaft XP1

Honma 53g Vizard Fairway Shaft

All of the fairway woods come with the same made-in-Sakata, Japan 43g, 53g, and 63g Vizard shaft options as the driver to help every player get the most of each club in the set. If might seem like a minor detail, but being able to design an entire club in house from head to grip is a big advantage for Honma versus other OEMs. This holistic approach to designing an entire club/set is a big benefit to the consumer looking to get the most out of each club in their bag and not feel like something may be working against them.

Honma XP-1 hybrid

With the Honma XP-1 hybrid, forgiveness and flow from the fairway woods is the number one consideration for these club. The flow includes a wood-like shape that keeps the club shallow and the center of gravity as low as possible for higher launch and approach shots that fly higher and land softer. Considering the target player for the XP-1 line, the wood-like shape is also very confidence-inspiring.

New 2020 Honma XP1 hybrid

Honma XP-1 Hybrid

Honma continues the design philosophy of keeping the XP-1 both forgiving and fast by utilizing the double slot sole all the way into these hybrids that go from a 19-degree 3-iron replacement to a 25-degree 5-iron replacement.

Honma XP-1 specs & availability

The Honma XP-1 driver, fairway wood, and hybrids will be available starting in October.

New 2020 Honma XP1 Driver fairway hybrid specs

Honma XP-1 line club specs

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2020 Honma XP-1 Irons, featuring “fast” hybrid construction, launch

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Honma XP-1 Irons

Honma has unveiled its game improvement 2020 Honma XP-1 irons which feature a hybrid construction with low CGs and fast faces in the new 2020 Honma irons.

The XP-1 long irons (4-7 iron) are hollow and contain a tungsten sole weight in a bid to offer both higher launch and added stability on mis-hits. The short irons (8-SW) feature a cavity back construction and are designed for maximum forgiveness as well as providing straighter distance.

2020 Honma XP-1 Irons

The long irons also contain a wide sole which seeks to add forgiveness and also offer game improvement golfers greater turf interaction.

Honma XP-1 Irons

The XP-1’s, which are crafted in Sakata, Japan, feature a large profile with a traditional shape, with a thin face designed to maximize ball speed for greater distance.

Honma XP-1 Irons

Speaking on the release of the company’s entire XP-1 range release, Honma’s Vice President of Global Product, Chris McGinley stated

“We are thrilled to bring the many decades of club-making knowledge and shaping talent of Honma’s master craftsmen to game-improvement golfers with XP1. This product line is incredibly beautiful and exceptionally playable and will help golfers with a wide range of skill levels enjoy the game even more.”

Honma XP-1 Irons

The new additions from Honma come equipped with the brand’s VIZARD shafts. The shafts contain an ascending weight flow design and a graphite fiber in the tip, which, according to the company, helps to provide faster swing speeds.

Honma XP-1 Irons

2020 Honma XP-1 iron specs

Honma XP-1 IronsThe XP-1 irons, which arrive in both men’s and women’s models, are available in-store and online from the beginning of October and cost $199.99 and $174.99 per club for graphite and steel shafts, respectively.

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