I would like to have a Maxprop or similar, but after 17 years with the original 2-blade, I think I can live with it. I figure I would notice the extra drag of a 3-blade and the stock prop works well enough except in a strong headwind with big waves, when I seem to lose a knot or two. Everything in a boat is a compromise and the prop is no exception. Does anyone know if the later ('84 - '85) H37 Cutters that had the Yanmar 4JHE came with 3-blade props from the factory?