Originally Posted by
Jim Thomerson
I recommend you start out with the CG 1/2 to 3/4 in back of the leading edge. If the airplane does not fly to suit, move the CG back about 1/8 in at a time until if flies to suit you.
That's how I'd do it as well.
Also roofing washers (the lead ones) come with a convenient hole in the middle, so you can bolt them to the rear fuselage. If you can't get them, just sheet lead drilled so you can bolt it on.
Greg