trying to help a find and need prop advice..... he just bought a 8 year old bay boat that is 19 foot and unsure of name but it is rated for a 150 hp and has no jack plate.....not sure of year of motor but guessing its 8 years old also.....he is running a 115 mercury four stroke and a 3 blade ss prop 18 pitch and prop is in bad shape and needs work....well it takes about 75 yards to plane the boat out and top speed per gps is 34 mph.....he is not worried about speed... he wants to buy a new prop and looking for better hole shot...so what do you think..... we are guessing boat weight is 1800 lbs or less and no tach on boat so rpm is unknown....