FCS II Al Merrick Twin + StabiliserAM Twin fin with mini stabiliser. Lowest area twin set in the FCS range. Overview Lowest area twin set in the FCS range. The low sweep (rake) and narrow tip means these fins pivot and release exceptionally well, while maintaining incredible trim speed and the ability to quickly break into a turn. Mini stabiliser has a narrow, elongated template with a rounded tip to add control when driving through turns. Board Types Designed to fit the FCS II Fin