Channel Islands Merrick/Gudauskas Fin

A 2+1 setup gives you the loose, skatey feel of a twin-fin while the smaller center trailer adds just enough stability and hold to keep you from sliding out during aggressive turns. It is the best of both worlds if you want speed without sacrificing control.

These are designed specifically for twin-fin boards that have a center box for a trailer. If your board is a standard thruster, this setup will likely feel too loose and unstable; it is best suited for boards shaped to accommodate a twin-fin base.

The rakey template allows for longer, drawn-out turns and helps the board hold speed through carves. Because the fins are swept back, they provide more drive and predictability than a more upright, pivot-oriented fin.

This set is incredibly versatile, but it shines in conditions where you want to generate your own speed. The twin-fin base helps you plane quickly in smaller, weaker waves, while the trailer provides the reliability needed to push hard when the surf gets steeper.

This configuration encourages a high-performance, flow-oriented style. It is designed for surfers who want to combine the freedom of a twin-fin with the ability to perform more aggressive, vertical maneuvers.