Every motor I've ever used always turned in a CCW direction. Now my new electric will turn the same way. Of course I fly CW. When I first started flying over 50 years ago the guy who taught me flew CW. He said he did it to take advantage of the torque of the motor. Now that all the CCW flyers have the advantage of using pusher props, most if not all the top flyers run theirs in a CW direction. I remember when Paul Walker was first starting to fly electric and I commented about his pusher prop. His comment started out with "you know how you always lose a bit of tension at the start of the downward leg on the outside squares?" then he stopped and said "I forgot, you don't know about that. My comment to his was "welcome to my world".
Alan Resinger