My boat has a 15 x 19 prop on it. It doesnt get to max rpm... far from it. The Previous Owner said it should have the other prop on it. That prop is 16 x 17. (The prop selector for this AQ200 (200 hp) is more in the 15 x 15 range.) here's the question: is the 16 x 17 a prop that will give me...