sentences:  A newer non-class, deeper elliptical foil by Foss Foils in Newport, California was created for pure offshore ocean racing which garnered measurable stability on S/V Kato in the 2016 Single Handed Transpac (winner), and on S/V Concussion with her 2nd place finish in Lauderdale to Key West.The Foss Foil has more wetted surface area and weighs over twice as much as the original foil, which tends to cancel out any penalty by ratings review.While One Design racing class rules specifically prohibit reinforcing the hull with longitudinal stringers or added bulkheads, many other kinds of modifications exist to increase hull rigidity.