I have the above motor on a 14' 6" 1976 CFM. She runs like a scalded dog and gets up on plane quickly. However the factory aluminum prop is getting a bit chewed up around the edges. I am told that it is a 9.5 x 10. This old prop has a rubber hub and has shear pins instead of drive teeth and is locked into place with a threaded nut with a cotter key. Do I have any other options other than an OEM type prop? I have yet to find a stainless prop that use a shear pin. Any suggestions from you fellas???