Yes, I'm thankful for a second pair of eyes looking at this. I think once I get used to it, play around with the tweaking, I'll have a better understanding on how to set this up. The system and its science is sound. But if things like the dowel rod not running parallel to the wing spar, its easy to get a misreading. I love the science how this works, but it's important to get things right in order for correct readings. I bet in the end, I'll pull out the Great Planes CoG machine, just to check my work. The GSS is just a monster to wrestle with. I accept the challenge. Thanks ET.