About 6 weeks ago, when I was flying in Florida, I checked the BME 5.8 (100cc) of another modeler with my tach. With a Menz-S 26x10 prop - 6400 rpm. Don't know how much time on the motor, but well past break-in. Ran well and was pretty smooth. Any good 26x10 prop would be a good choice...Mejzlik if you like carbon fiber....Menz if you like wood. I wouldn't worry about static thrust measurements....not too meaningful for flying. For oil, BME probably says Amsoil at 50:1.