Callaway’s put a lot of marketing behind its new drivers — the GBB Epic and GBB Epic Sub Zero. I braved the January rain at the company’s test range to see what all the fuss was about.

The two 460cc drivers look similar at address — shiny black with green accents and an inviting, conventional shape. But turn them sole-side-up and the differences become apparent in that the Epic has a sliding weight track toward the rear perimeter in which you can tune a draw bias, while the Epic Sub-Zero has interchangeable forward and rear weights that alter spin rate. Both models are loft-adjustable.

The Epic felt soft yet really solid. I loved the deep, pitch black clubface. Ball trajectory was high and straight. Toying with the movable weight, I could easily influence flight. The clubhead has a higher center of gravity and spin rate than the Sub Zero, which is more forgiving.

Company reps told me that their TOUR pros are picking up an extra 2 miles per hour with these models, which loosely translates to six yards of distance  — pretty significant. For me, they were equaling or besting my top distance on a consistent basis. In other words, believe the hype!

Buy yours at PGA Superstore today!

Veteran golf writer Scott Kramer has covered the golf equipment market full-time since 1990. His career has spanned senior editor positions at both Golf Pro Magazine and GOLF Magazine. He now works on a freelance basis for many consumer and trade publications, including the SCGA’s FORE magazine.