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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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Equipment

WRX Spotlight: Swag Golf proto putter

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Product: Swag Golf proto putter

Pitch: From Swag “Swag is the brand that isn’t scared to push the limits in a conservative sport that isn’t evolving to meet changing styles. We like to listen to music on the course, we want to be bold, we love having fun, we love golf, and we’re going to express that both on and off the course. We aren’t going to try to sell you on how great our proprietary materials are and we don’t need to rely on clever marketing to sell more. We’re a no BS company. What matters is that our putters feel good and in turn make you feel good when putting. We have some crazy ideas, we love to tinker, and we experiment on how to perfect everything we do. ”

Our Take on the Swag Golf Proto putter

Though relatively new, Swag Golf has been making a big splash in the industry for their high-end and striking headcovers and accessories. Perhaps less talked about when it comes to the company is their putters – something which I feel is likely to change after testing out their prototype rainbow finish flat-stick.

The putter is beautiful from whatever angle you look at – but especially at address. Extremely smooth lines, and with full-shaft offset, the blade’s shoulders and bumpers are flawlessly balanced to frame the ball and let the putter sit perfectly square. The single line alignment aid enhances the look and is positioned right in the center of the blade’s sweet spot, while the CNC milled flat-stick delivers perfectly smooth edges – noticeably on the neck for a sublime and soft profile.

With a head weight of 354g, the putter from Swag feels exceptional in your hands over the ball. Every detail matters when investing in a premium putter, and the sensation of the stable and firm feel of the flat-stick as well as there being no wavering of the head, makes the putter feel like an extension of your body when standing over a putt.

The sound and feel of the putter is an area where Swag has knocked it out of the park. With a fly milled face from 303 Stainless Steel, the flat-stick delivers an incredibly soft feel at impact.

No vibration is felt on impact, even on long-distance putts. It never feels like your hitting the ball but more caressing it, which is a pleasant sensation when putting from downtown. What you get in terms of sound at impact is a low, deep pitched note from a putter which rolls beautifully on its axis and produces no vibration on slight mis-hits.

To nitpick, the company’s “black mid pistol tackified kangaroo leather grip” took some getting used to. Initially, it took a little away from how impressive the flat-stick feels in your hands, but it gradually becomes more comfortable.

Overall performance-wise though, the putter from Swag provides everything you could hope for from a high-end putter. Exceptional feel at address, painfully attractive profile and precision at impact.

As of now, the company boasts self-confessed “putting nerd” Kevin Streelman as their PGA Tour ambassador. Streelman is currently gaming the brand’s Handsome Too proto, and after experiencing the Swag rainbow proto for myself, the highest compliment I can give is that I would be surprised if he (and PGA Tour newcomer Rhein Gibson) are still the only Tour pros to game one of the brand’s flat-sticks in 12 to 24 months time.

In terms of an Anser-style putter, Swag packs a hefty punch with their numerous offerings. While I personally love the eye-catching rainbow finish (which has been blasted to remove some of the boldness), I realize it’s not for everyone. However, the company has plenty more traditional finishes on their array of flat-sticks, which you can find on their website here.

Whatever finish you prefer your putters to come in though, it’s unlikely that any department of Swag’s flat-sticks will leave you disappointed.

 

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New Mitsubishi Chemical ZF shaft in play at the Tour Championship

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Even after winning just a week ago, Justin Thomas has put a new MCA Diamana ZF-Series shaft into play for the Tour Championship and FedEx Cup Final this week at East Lake Golf Club. JT is using the 60g TX version in his 9.5-degree Titleist TS2 driver (see Thomas’ BMW Championship-winning WITB here).

MCA has confirmed the new shaft and given us some great information on why it is are adding this fourth profile to the Diamana line—something the company has never done before.

The new Diamana ZF has taken the easy loading bend profile from the BF-Series and tweaked it in certain spots along the length to further maximize the design and find greater performance for players across swing speed ranges.

“The result is a profile that makes ZF a little more explosive and easier to accelerate.” -Mark Gunther, Vice President of Sales and Marketing for MCA GOLF.

Like the other shafts in the Diamana Fourth Gen. Series, the Diamana ZF shafts owe their stiffness and stability to two unique technologies. First: the MCA-developed MR70 carbon fiber material, and the second: Boron fiber. MR70 is found in both the butt and tip sections of the shaft and is 20 percent stronger than conventional materials, with a 10 percent greater modulus (a measure of stiffness). These designs have additional strength thanks to Boron fiber in the tip section to create the exact EI curve desired.

When you compare the new ZF to Diamana BF-Series, the ZF-Series shafts are a slightly stronger profile and built to have increased stability in both the butt and tip sections. They feature a softer, more active middle for better energy transfer and clubhead acceleration.

A cool feature for those looking to get a bit more distance but are on the lower end of the swing speed spectrum: There will also be a 40-gram version of the ZF, which is the lightest shaft of the fourth generation Diamana family.

“We’re extremely happy to have a 40g option within Diamana™ ZF,” says Gunther. “This opens the performance benefits of these unique Mitsubishi Chemical materials to a whole new range of players who prefer to play an ultra-lightweight shaft.”

Mitsubishi Diamana ZF-Series Availability and Specs

Diamana ZF-Series will be available September, 13 2019 at MCA GOLF authorized retailers and dealers nationwide, with a suggested retail price of $400.

Weights and flexes

  • DIAMANA ZF-Series 40 (R2, R, S Flex)
  • DIAMANA ZF-Series 50 (R, S, TX Flex)
  • DIAMANA ZF-Series 60 (S, TX Flex)
  • DIAMANA ZF-Series 70 (S, TX Flex)
  • DIAMANA ZF-Series 80 (S, TX Flex)
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Forum Thread of the Day: “Are 919 forged irons really that good?”

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Today’s Forum Thread of the Day comes from 9ironiscash who asked fellow members what they thought about Mizuno’s 919 forged ironsOur members dish out their experiences gaming the irons, with the majority of WRXers answering with a resounding yes to 9ironiscash’s original question.

Here are a few posts from the thread, but make sure to check out the entire thread and have your say at the link below.

  • Gmack1973: “I think the 919 forged are great irons. I play to a handicap of 4 and think I’m not a bad ball striker. I had the tours 6-pw, and they were great but a bit unforgiving if you don’t get them out the middle. I now have 919 forged 4 – PW and couldnt be happier. They have the Nippon Modus 120 stiff shafts.”
  • Gofguy224: “They are great irons! Had them for about a month and I’ve already shot 3 of my lowest scores ever! Very forgiving and they feel buttery soft
  • chjyner: “The whole 919 range is probably the best on the market “
  • PowerCobra98: “I like them. Moved from Apex 19’s into 919 Forged. I’ll likely be looking at a set of MP20 HMB’s though.”

Entire Thread: “Are 919 forged irons really that good?”

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