Callaway EPIC SubZero Driver
Callaway Mens GBB Epic Sub Zero Driver
Jailbreak Technology Unleashing Faster Ball Speeds
As a company, Callaway seemingly has produced great drivers year after year, but with the advent of Jailbreak Technology, the new GBB Epic drivers, both the standard Epic and the Sub Zero model, have exceeded all others in terms of buzz and excitement. The primary reason for that has been the sizeable increases that Callaway has seen in ball speeds during testing. Keying those increases is Jailbreak Technology, which utilizes two titanium rods within the construction of both Epic drivers that connect the crown and sole to keep the clubface from expanding and losing energy transfer at impact. Also of note, the Epic drivers feature an extremely low, deep CG placement that was enabled by the use of lightweight triaxial carbon in the design and the result is high launch, low spin, and increased MOI. Additionally, a Speed Step on the crown reduces air drag during the swing to help increase swing speed. Both GBB Epic models are 460cc but the Sub Zero has two weight ports in the sole that allow a 12-gram and two-gram weight to be positioned to influence launch and spin rate. With the heavier weight in the forward position, spin rates will drop significantly, while positioning the heavier weight in the back will increase launch and maximize MOI. From an appearance standpoint, the Sub Zero also has a slightly deeper profile, and it has been designed as a lower-spinning head but without sacrificing forgiveness, as its MOI is comparable to the standard Epic. Callaway is also again utilizing its OptiFit hosel, which allows players to adjust loft by +2/-1 degrees and additional draw settings are also available. The GBB Epic Sub Zero driver is available in standard lofts of 9 and 10.5 degrees, it comes at a stock length of 45.5 inches, the swing weight is D4, and custom paintfill options are are also available. It also features stock shaft offerings from Project X, Fujikura, and Aldila in varying weight classes, flexes and launch/spin profiles to suit the needs of any player.