Okay, no laughs! Am "old school" and currently own a 1979 17ft. Witchcraft Banshee with a 1980 90HP in-line 6 Merc. It's paid for and "mint" and gives me plenty of thrills for the buck. Am looking for info on prop section. My current prop came with the motor and appears to be a 12", 19 pitch three blade aluminum prop. With this prop, I am only turning 4600 rpm at full throttle (on Havasu). Don't know the speed due to the fact that I have no speedo. This prop gives me a decent hole-shot and adequate top-end. What I am looking for is a prop that will get me closer to the factory recommended rpm (5200) without sacrificing either my hole-shot or top-end. Possible? Thanx for any help!