I am running a 93' 115 Merc on a 16.5' boat. It does not have a jack plate and I have a 24 pitch merc. quicksilver 3 blade SS prop. When I hammer it out of the hole the prop slips "blows out" after about 3-4 seconds just as the nose of the boat starts to drop. I have to ease off the gas and then all is fine. Also I am turing right at 5900-6000 rpm at wot. I would like to lower this by 4-500. I think that a 24" prop is about right for that hp or motor, should I consider lowering the motor on the boat? Any help is appreciated.<br />Chief