Somewhere in cyberspace I came across a site that did some testing that seemed like it made sense anyway
they took wheels off of a plane and mounted it to a bench and using a well regulated power supply with a amp meter they tested prop balance by
measuring the current draw on the servos the more the prop was out of balance the more current the servos drew trying to hold center, the props that where in the best balance had the lowest amp draw so I guess prop balance does effect the plane to some degree can't see it being good for the servos to constantly be moving anymore then necessary to hold center there was also one on engine mounts http://www.centralhobbies.com/Engine...s/hydetxt.html