ORIGINAL: RCKen
Instead of using your fingers make yourself a quick and easy CG maching. Drill two holes 2"or 3" apart in a 1"x2" so that you can put two pencils in, one in each hole. Now you have can set the plane on the top of the erasers of the penils to find your balance point.
Ken
neat little trick, I'll have to try that. that plane in the pic turned upside down right?