Mountaineer,
Here's what I do when I balance. I mark the CG as per the plans and mark that spot with a sharpie. I then use the CG machine to balance the plane. I do one thing a little different than most people, I completely assemble the plane and balance it BEFORE I cover the plane. I do this so I won't have to cut covering later down the road if I have to add weight. Of course I do a final CG check once the plane is completely covered and ready to fly.

Ken