If you are running an A75, what prop are you using and what static RPM do you get? I have a 7044 McCauley and am getting around 2250 static and 2400 full throttle in cruise (or something close to those numbers...haven't checked lately). I would like to get closer to the allowed 2425 static and 2600 red line. I'm wondering whether to repitch to 42 or 40 or something else.