FCS2 x Harley Ingleby's HIBT pro quad set, designed for the Harley Ingleby x Bill Tolhurst 3+3 high performance surfboard.
The HIBT 3+3 model has opened up a world of fin configurations for surfers. When this HIBT quad set is used alongside the Harley Ingleby Power Twin Set (sold separately), the following fin configurations are possible; quad-fin set up, twin-fin set up, and a asymmetrical quad and twin fin configuration.  

The set comprises the FCS2 Reactor Large Thruster front side fin and the FCS2 Performer Large Quad rear fins. The reactor front fin template encourages tighter radius turns on longer boards due to the upright nature of the fins. As a quad set, it will feel fast, smooth and predictable while encouraging a more drawn-out term. Configurations options are designed to offer a feeling of control, with the freedom to surf radically on a mid-length. 

Performance Glass (PG) fins are machine cut from layers of solid fibreglass. PG fins have very fast memory recall which translates into speed. These fins are stiff, providing immediate response and acceleration as the surfer powers up and drives through a turn, while maintaining flex integrity under immense force and in extreme conditions and situations.
PG fins are widely used by pro-level surfers.