Hi Richard - depending on what speed you are flying with, this may be the case - ie Straight and level in different flight conditions might well need a little trim one way or the other. If you were to repeat the experiment with slow cruise and fast cruise, you'll probably find different results.

NB - you have indicators as to the trim position in the aircraft - either on the Dynon display or on LED ladders depending on your config - the sensors are independant of the motors, so will give an accurate indication of the trim setting.

Regards
Ben

Ben I noticed that PiperSport UK has a vent window available. I have sent them a email but never received a response. Would you check on this and let me know how to reach someone.
Thanks,
Dick

Dick- what email address did you send a message to? certainly should have been responded to if you sent... did it by any chance go into your junk mail?