SRP: £349 Lofts: 9 & 10.5
Stock shaft: Fubuki Zeta 
Adjustable? Yes

Player comments 

PC – I love the looks. Performance was better than average for me but not exceptional

JW – Much better for me than the Alpha in terms of results. This was the longest driver for me on the day. The arrow reminds me of vintage Callaway clubs.

Hot: Sliding rail really does reduce unwanted sidespin. 
Not: To spend £350 and still not have the top-of-the- range model (Alpha) could put some off.

Callaway Big Bertha Driver