After reading many of your posts, I still don't think you understand how a C/S prop works. My Rocket will climb at 4000 FPM at 85 knots - but if I push the nose over to a faster airspeed, the prop adjusts to maintain the same 2700 RPM I used for max climb. If my prop maintained the same pitch (fixed) that was best for the 85 knot climb, then at 86 knots, the engine would over speed. My airplane will go from 0 airspeed to 220 knots at the same RPM, thanks to the blade articulation of a C/S prop. A fixed blade angle on a fast airplane means you are taking a huge compromise on one end of the performance envelope. Pitch the prop for 80 knots, that's what you get.