so ihave a 89 skeeter sd 80 15.7 ft bass boat, powered by 89 mercury 60 hp. boat weighs 800 lbs without gear and gas. my current prop is a 15 pitch stock prop. the setup now at 5500 rpms will run about 31mph. ok heres where my prob is. the manufactors recommended operating range is 5300 to 5500 rpms which should be WOT. my concern is witht the 15 pitch i can get nearly 6000rpms if i open it to WOT which is i think over reving the engine. i do not run that high rpms i usually stay at 5500. my question is would it be better to go with a higher pitch prop to get the rpms down at WOT. or is the extra throttle about normal? i do not gain speed from 5500 to 6000 the motor just turns more rpms. i dont want to make the motor lug by getting to high pitch. so ANY advice you have would be helpful
