CALLAWAY GBB EPIC SUB ZERO
www.callawaygolf.com Lofts: 9°, 10.5° Stock shafts: Aldila Rogue MAX, Project X HZRDUS, Fujikura Pro Green Adjustable hosel: Yes How much loft change: -1° / +2° TECH: An exo-cage body structure is paired with a carbon crown and sole, makes it possible to position the CG in line with the neutral axis, to control spin. 12g and 2g sole weights can be swapped to lower spin or increase launch and MOI.
WE SAY: It doesn’t take too much detective work to decipher Callaway’s Epic drivers are very good. When Rory puts one in his bag without any sort of Callaway contract you know it’s because it performs. And if you’ve thought “Sub Zero” CG drivers are just for hard hitters, think again. Both amateur testers saw slightly better results with the Sub Zero over the “mainstream” Epic, which says as long as you’ve got enough club speed to launch it, you can seriously benefit from the extra forgiveness (with the 12g weight in the back port).
VERDICT: Callaway says Jailbreak increases ball speeds and we’d have to agree – for two of three testers it produced their fastest average ball speeds.