The Future C5 Fins were developed by Rusty. They are a small fins that are similar to a Twinzer fin and originally added to a Twin Fin to add stability. Rusty worked with Will Jobson (Twinzer pioneer) on this design, he also worked with the Campbell Brothers early on to gain knowledge about the Bonzers. Now these little fins can be added to many different designs based on what the board builder desires.
According to Rusty “The fin relationships, relative cant, positioning, angles make or break the design. Just a few degrees off and it will feel like the parking brake is on. Get it right and the board will feel like it’s turbocharged and riding on little ball bearings.” 2.5″x2.5″
The C5 box is specifically designed as a twinzer box.