Originally Posted by
pmgoffjr
Some hulls are just going to be soakers. If you don't have chines that run really far forward, which knocks down the spray, it's just going to slide up the side of the hull and into your face.
But, your thinking is somewhat correct, if your prop can't carry you at your trim angle, then the motor is too high for that prop. Now, very few can run full trim at 20 mph, so there's a limit, and we can't see exactly what you're trying to do.
A four blade will typically keep water contact better in the slop than a high rake three blade, but again motor height, speed and trim angle have limits.
If I knew I was in for a rough day on the pond, the trophy got put on, you compromise some speed for big water performance.
So, try your four blade, if it gives you what you want, great. If not drop the motor a bit at a time until you get the results you want. Porpoising and cavitation are absolutely symptoms of too high.