[BroadHopper]

Dan is right about lower pitch props increase the RPM and higher pitch will decrease. Sometimes lowering a prop pitch can increase speed and vice versa. There is no exact science. Different makes and models of props can also effect the 'attititude' of the boat as well as the RPM/Speed. The best way to determine the best prop is to call the manufacturer. I'm sure they did tons of research.

No one talk about the number of blades. The higher the blade count the more torque is applied to the water. A 4 blade tend to slip less than a 3 etc. This is the reason the Bravo III setup are very popular with heavier boats. I am not familiar with tritoons but I can imagine that a 4 blade will be more efficient than a 3 blade. Whan increasing a blade count, decrease the pitch about an inch to get the equivalent RPM you had with the 3 blade.

There are 5 blades, but they are used in water ski crafts and bass boats for better 'hole shots'.

On the smaller HP motors with less torque, a 4 blade may put more strain on the motor. I would stay with the 3 blade.