BTW guys, what things on our models affect where the CG should be?

Chord, span and tail moment. That's about all we need to measure with a yardstick to get "the formula" to give us a safe, reliable CG location. OK, I oversimplified a bit. We need to find the chord and span of both the wing and the tail. And we need to find both the root chords and the tip chords. OK... still too simple... We need to measure the leading edge sweeps too. 9 measurements, but not really complex ones.

Having root chord, tip chord, span, and LE sweep is all the formula needs to figure out what the wing looks like from above, and where the area is from that view. It can work out aspect ratio for example, if it wants to. It can tell how the sweep affects where the wing area works it's magic.

We also have to get the distance the tail is aft of the wing. Measuring from the LE of the wing to the LE of the tail gives the formula enough information to work out everything else it needs.

We do have to provide those applications another mysterious number however. On the other hand, just give it 5% and tell it to compute. Then give it 15% or 20% and compute and you will have gotte the forward and aft CG locations for a safe, reliable CG range. No effort on our part beyond being careful not to poke holes in our new creation with the yardstick while we take 9 measurements.

Modern technology can be simple. And easy.