I have a 2013 H22B with a 150hp yamaha 4 stroke. I am running gps 52mph at 6000 rpms. I have a 6 inch hydraulic jackplate. Running a 21 pitch OFX powertech prop. Is this about all I can expect out of this setup or could I get more out of it. I am very pleased with the boat and 52mph with a 22 footer is good but if there is more to get I want to maximize my setup. Thanks in advance.