Futures Controller Quad Fin Set The Controller Quad is a split keel setup designed specifically for use in wide tail fish designs. The honeycomb & bamboo construction, V2-Foil and xtra-large surface area are great for generating speed and maintaining it through a sequence of turns. With the upright template of the quad rears, there is a skatey feel to the set that’s similar to a twin keel, but with more control. Template Category | Pivot (tight-turns/loose) Construction | Honeycomb w/ Bamboo Ride Number | Balanced – 8.3 Size | X-Large Quad Side Fins Rear Fin Area 18.24 12.06 Height 4.50 4.53 Base 5.05 3.89 Angle 6.5 3.0 Foil V2 80/20