I'm running a 285 pro XL with a 150 Verado, 23P Trophy Plus prop. The previous owner told me it also ran well with a 24P Trophy Plus. It will hit the rev limiter at about 58mph with a reasonable amount of gravel rash on the prop. I've just fitted an 8" set back Bob's hydraulic jack plate and haven't run it yet. Should I try a 25P prop straight up?