Its a simple calculator to figure out your CG range. It takes a tape measure and about 5 minutes use. That includes taking the dimensions, inputting them and getting the results.

Some people will suggest that the CG is located at the thickest point of the wing, at the main spar of even suggest that it is at the wing tube. Perhaps these suggestion could get you close but with a straight leading edge wing that tapers like the EDGE does, it could be a recipe for disaster.

My 2 cents,

Mark