Callaway GBB Epic/Sub Zero
Our Review:Callaway believes a flexible face isn’t enough. Adding structural stability allows the face to be thinner and concentrates that flexing across a wider area. So inside the head, two bars stretch from the crown to the sole. The extra stability makes for a face that’s 20-percent thinner and more flexible than before. The two models use a titanium frame with carbon-composite panels above and below. The standard version offers a sliding rear weight to address slices and hooks, and the Sub Zero’s two weights optimize ball spin. It’s Callaway’s most intriguing driver in two decades. Fourteen of our 16 testers put this club in their top five.
Specs: 9, 10.5, 13.5 (adjustable +2/-1)/9, 10.5 (adjustable +2/-1)
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Look / Sound / Feel
* Percentage of total score
lowIt’s easily the most consistent driver, a controlled explosion at impact.
midThe adjustability is intuitive.
midModern looking. It's muted but not too muted, like a silent assassin. Easy to launch high and not balloon, even for low loft to get in the air. Plentiful sweet spot.
highLooks badass. Power was colossal. Sound is muted, but there's a strong carbon-fiber punch.