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November 14 2013

2:47 PM

Callaway's X2 Hot and X2 Hot Pro irons

Callaway Golf
Callaway's new X2 Hot irons are significantly more consistent than previous models.
By Jonathan Wall, PGATOUR.COM Equipment Insider

Creating an iron that's more consistent than its predecessor is something every equipment company strives to achieve during the design process. Callaway is the perfect example of a company that was able to do just that with its new X2 Hot, creating an iron that's 40 percent more consistent than last season's X Hot.

That's not a typo. According to Callaway's senior vice president of R&D, Dr. Alan Hocknell, a few significant technological improvements to X2 Hot allowed engineers to design an iron that's arguably the company's most consistent iron ever produced. 

The increase in consistency is due in large part to a Chevron-shaped stabilizing arch in the cavity that was cast into the face of the 17-4 stainless steel iron. The multi-material badge helps stabilize the upper portion of the face, improving sound, feel, ball speed and consistency.

"[The stabilizing arch] is the result of countless computer models," said Dr. Hocknell. "You're actually looking at a part of the back of the face, and the arch divides the back of the iron into different zones. It stiffens the face in just the right areas so you get stability in the face, as well as high ball speeds."

Along with the improved consistency in X2 Hot, engineers also made the iron more forgiving thanks to a deep central undercut in the cavity that allows the face to remain thin all the way to the ground, moving the center of gravity lower and forward in the face to improve forgiveness. The CG shift also makes X2 Hot about 3 yards longer than X Hot. 

Along with the face, the sole and overall front to back profile of X2 Hot was thinned out to make it look less like a game-improvement iron at address. The irons also have Callaway’s 30-degree wide-spaced V grooves — the same grooves currently in the new Apex iron — that maximize spin from the rough. 

The X2 Hot Pro irons have the same multi-material stabilizing arch as the standard X2 Hot, as well as a thinner face — for increase ball speeds — and a bar along the lower portion of the club that lowers the CG for increased forgiveness. 

Compared to standard X2 Hot, the X2 Hot Pro has less offset and a more compact head. The Pro version, which is also cast from 17-4 stainless steel, also features Callaway's CG Height Progression, which shifts the the center of gravity progressively lower in the long irons, for additional forgiveness with higher a launch and more carry. The short irons have a CG that's progressively higher, giving them a flatter trajectory with less spin for more control on approach shot.

X2 Hot Pro has Callaway's new 37WV groove design — the same groove design as Apex Pro — that delivers a higher launch out of the rough for more distance.

Callaway's X2 Hot standard iron will be available Jan. 17 and comes with True Temper's Speed Step 85 steel shafts for $799. The X2 Hot Pro comes with Project X 95 Flighted shafts for $899.
 
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