FCS II Al Merrick Tri-Quad Fins Overview Al Merrick's template is designed for radical, progressive surfing. The raked side fins produce exceptional speed and drive, while the smaller centre fin on the medium and large template offer quick release through turns. Tri/Quad (5 fin) set Ideal Conditions Hollow steep waves, punchy beach breaks. Board Types Designed to fit the FCS II Fin System. Performance boards with deep concaves and moderate-to-extreme rocker. Fin Family Carver: Find Power. Powerful, drawn-out turns with added hold. Material 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. Size LARGE (75Kg - 90Kg / 165 - 200 Lbs) Fin Base (inches) Base (mm) Depth (inches) Depth (mm) Area (inches) Area (mm) Sweep Deg° Foil LRG (side) 4.61 117.1 4.69 119.0 15.63 10083 36.3° Flat LRG (Ctr) 4.47 113.5 4.45 113.0 14.68 9469 38.6° 50/50 LRG (Q-Rear) 4.09 104 4.26 108 12.63 8150 32.4° 80/20