So far, no response from Great Planes Electrifly on the length of the leads from the ESC to the motor. I did find this statement in the ESC manual:
“If the wires are not long enough to make all necessary
connections to the ESC yet achieve good balance in the
aircraft, it’s best to extend the length of the wires to the motor
(not to the battery).”
I don'r expectany more info but if I do I'll let you know.