i have a 06 21i with the 250 yamaha, 25t1 prop. I'm look for your top speeds and advice on maximizing my boats performance. I'm running: 73 mph(gps),5900-6000 rpms, water pressure 25 psi, 3/4 tank fuel, all tackle and two guys, slight chop on water. My prop has a couple very small dings and probably needs some attention. I'm considering raising the engine a 1/4 inch. Thanks