I own a 17' Maxum bowrider with a Mercruiser 4.3L LX 175HP sterndrive. Currently, I have a 3 blade AL, 14.5" diam., 19 pitch prop. After running some tests last fall, I believe my WOT is slightly high. Trimmed, I max. out at 37 MPH. From Idle, with a steady increase in throttle, it took 20-30...