I said I was a newbie when I first introduced myself and man did I ever make one heck of a mistake.
I was about 45 grams short of getting the correct COG (118-122 MM). I had a piece of masking tape with a pencil mark underneath the wing to measure 120 MM. I did not measure that from the leading edge of the wing
.... I measured that from the end of the wing closest to the body to the tip of the wing.(LOL).
I now have the tape marked correctly at 120 MM from the leading edge of the wing and the COG is bang on as per the Manual