Developed with Francisco Goya for early planing, great upwind ability and strong on-shore performance. The main difference with this modern quad set is the center fins increase the size while the side fins remain the same (8cm). The center fins are designed with a little more tip allowing for smaller side fins. Available in 15cm-17cm US base centers. Only side option is Slot Box 8cm. Centers and sides are sold separately!! Special note: Image shows Mini-Tuttle side fin (not available).