I have a 2002 21 xl Prostar with a 225 Optimax on the back, Currently turning a 26 tempest plus, and its 69-70 mph boat on GPS, Looking for a prop that has a bit more lift in it. the hull really digs and spits out water a foot up from the console when im going 30-40 mph, just feels like its digging. maybe i need to move the motor up. just looking for some advice. any help is greatly appreciated.