Figuring out the COG for this thing is a bit of a nightmare.
I built a 10.5 inch span glider and test showed the COG to be a lot further aft than anticipated. So I am going to build a flat foam test bed to get that issue resolved before I can go much further with the actual design work. Right now I am working out just how to stuff a motor into the nose of this thing.
Pictured below is the balsa glider on top of the foam test bed frame, as well as a jpg of the preliminary side view.