I got a 2008 Alumincraft 165 CS with a 2008 75 Yamaha 4 stroke. have a 13 1/2 Yamaha 15" prop that is 6100 RPM at 35 MPH. I'm considering a turning point Huster 13 1/4 X 17' prop. I'm hoping to lower Rpm's to 5750 and with the agressive prop raiser the bow for a bettter ride and a bit of increase of top speed. Your thoughts and suggestions.