I can’t say for specifics, but my yamaha loved a mercury prop, the vent system that is tunable is awesome, I’d hit full throttle the motor would jump to 3500 rpm the boat would take right off and plane super quick, the prop vented enuf exhaust to spin the prop easier and keep it at a very good rpm, night and day difference out of the hole. Everything else proved similar. Of course little different boat and motor than mine, I’m sure there is a good amount of info out there for that exact setup, walleye central I’d usually really good for finding some good info on that setup. (I ran a 23 tempest on my 190 reata, 200 2 stroke yamaha, think ill try a 21 next…)