FCS II DHD PC Tri Fins Darren Handley Design 'DHD' shaper fin. A versatile fin ideal for controlled power turns in critical sections. Overview Featuring a new sleek graphic and a modified smaller centre fin, the new DHD template is built for increased speed and fast tail release. Designed with a subtle texture on the top half of the fin to reduce friction, the innovation behind this fin is unmatched. By reducing the size of the centre fin, we have minimised drag and increased overall speed of this reliable all-rounder. This also allows the surfer to overpower the fin when executing dynamic turns, and release quickly out of long rail to rail carving. Ideal Conditions A wide range of conditions, particularly good in critical overhead waves. Board Types Designed to fit the FCS II Fin System. For all board types. Best suited to performance and hybrid shortboards. Fin Family Accelerator: Find Control. Speed, flow and response with added control. Performance Core Performance Core (PC) fins are made using a multi-layered resin transfer molding process. The flex pattern in PC fins extends progressively from the base through to the tip, helping the surfer to maintain drive and hold through a turn. This versatile fin material is light, and can be used in a variety of different conditions.