Hobie took the original EPO foil and digitized it to weed out the imperfections in the original design. We also improved the trailing edge for better out of the box performance. We developed the EPO rudder blade as the next generation performance rudder blade for the 14, 16, 17 and 18. With this proven foil shape and fine trailing edge, the EPO offers reduced cavitations and hum with smoother, more forgiving control. The EPO rudder is stiff where it counts due to its hand laid fiberglass construction incorporating extra cloth for longitudinal stiffness. We have placed extra glass in all the right places to ensure that is tough enough for the most demanding sailors using extreme mast rake.