Neck Beard 3 Spine Tek related fcsiifirewirepctriquadfins the Inferno FT features a Size:6'2" 21" 2 11 16" 37L the Inferno FT features a Quad fin design with a medium single concave that runs into a deep double concave between the fins that flows into a flat exit through the tail The Pyzel Ghost is possibly the first truly high performance board that works great for surfers of all skill levels and could be considered a one board quiver for any surf trip with decent to good waves on the menu allowing you to get the best of both worlds Channel Islands Neck Beard 3 Spine Tek Surfboard is built with the tri fin set up in mind but also works very well as a quad via a five fin setup