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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

Spotted: Fujikura Ventus shafts

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Photos of a new shaft offering from Fujikura have appeared in the GolfWRX Forums. We first spotted the Fujikura Ventus on Tour at the Safeway Open last year, and it went into two players’ bags that week.

Since then, the shaft has been showing up on Tour more frequently, and it is expected to come to retail some time early this year.

The Ventus is a Tour inspired design — meaning low torque and a stiff tip section. This profile creates a mid-launching shaft that also offers low spin.

The use of extremely stiff 70-ton pitch fiber throughout the full length of the shaft, creates more center face contact by reducing twisting at impact. The 70-ton fiber is laid at 45 degrees in the bias layer for tighter dispersion and consistency.

Fujikura itself tweeted the following evidence of continued player testing of the shaft.

See what GolfWRX Members are saying in this forum thread. 

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Spotted: Project X HZRDUS Yellow Smoke shafts

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A Project X HZRDUS Yellow Smoke shaft has surfaced in the GolfWRX Forums.

To expand its popular HZRDUS line, it looks like Project X is testing the new Smoke series to include the Yellow Profile. If you recall, the Yellow was the second profile added to the original HZRDUS line which has the key features of

  • Higher balance point to allow for both longer lengths, or heads with a higher than standard mass.
  • Slightly softened profile for smoother tempo players, and increased feel

project-x-hzrdus-yellow-smoke-2

The pictures also show off a new “Small Batch” logo that seems to be a play on the very popular original Hand Crafted. This would appear related to the moving of the Hand Crafted production line out of the U.S. manufacturing facility in San Diego owing to the growing demand in the market for the shafts in both the aftermarket and with OEMs. These “Small Batch” shafts could mean a return to the U.S. production facility for Project X.

Bringing the Yellow Profile into the Smoke line would add a softer higher balance point (counter balanced) profile to a line up already designed to have increased feel. From a fitting standpoint, this could be another win-win shaft, perfect for the slightly less aggressive players looking to play a longer driver without sacrificing feel.

Read more in the forums

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Forum Thread of the Day: “2019 Accra TZ5 & TZ6 shafts”

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Today’s Forum Thread of the Day showcases the 2019 Accra TZ5 & TZ6 shafts. The shafts have been met with resounding approval from our members on our forum, who almost to a man find them a thing of beauty, and are eager to find out just when they will hit the shelves.

For more photos, make sure to check out the full forum thread here.

Here are a few posts from the thread, and you can join the discussion at the link below.

  • Ziggy16: “Yessssss love it. I had the chance to hit Accra shafts for the first time in 2018. I think they are some of the best feeling shafts I’ve ever swung. It’s between them and VA Composites, although I just saw Oban is now back in the game. Still, after all these years, the HB is still making a mark in my bag.”
  • KMo23: “Have the TZP Proto in the Driver, can’t wait to find a weight and launch profile for a fairway wood. Lots of tour guys switching to this!”
  • Oaks: “It’s the best feeling Shaft I can remember in a while.  Reminds me of the old ACCRA feel that they were known for.”
  • rpmspooner: “I had a chance to chat with Reid at Accra yesterday. They are extremely excited about the Tz5 and Tz6. I think they think this one is a home run. “Smoother mid section” was the response. If that is true, I don’t know who is going to compete with ACCRA this year. They already owned the smooth space in golf shafts.”

Entire Thread: “2019 Accra TZ5 & TZ6 shafts”

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