I have a 2005 Xpress X19 with a 175 VMAX HPDI turning a Powertech TR04 23P. Hi Jacker 6" plate. 5500 RPMs. 4" PTP. Lift is good. Water pressure is good. My best run was Friday. 63.2 MPH. Air and water temp were 85 degrees. Empty livewell, 3 batteries, 1/2 tank of fuel, light load, and me @ 260 pounds. I want to stay at 5500. I'm not interested in running on the limiter. Is there a prop that would do better, maybe a 3 blade? Mark worked on my prop for my last boat and I wouldn't hesitate to send him another one. Any advice?