If there is, I don't know
Steward,Forgive the recursive logic, but you're welcome.People try all kind of things to get better performance from their motors. On the link below, they added a wedge to move the motor/propeller further away from the hull. This allowed them to raise the motor while improving bite by being in water less disturbed by the hull. At least I think.Another trick: I've heard the Honda factory suggest cupped propeller blades. Maybe somebody here uses one and can tell if it really helps.Happy Mardi Gras _/),MArk