Malcolm, thanks for your input as well. i am initially going to be trying 3 props for my setup. 18X12, 19X10, 19x12. I am ordering a data logger to help track what is really going on and am looking to minimize additional radio setup.

The first props i blindly chose would cause the motor to go out of time at about 50 amps and only 3/4 throttle. i determined that i had tooo much load n the motor and so having run out of e-props decided to test a glow prop. i was able to spin a 17X12 at 6800 RPM on the ground. Have not flown the plane as yet, waiting on the e props.

I am anxious to try the 18 and 19X12, i feel these will probably work best, but the 19X10 could be awesome in the calmer air. time will tell.

Thanks everyone fo their input.

Chuck