There is a Sub T E thats only 1/8 X 3/8 X 24 to form the rear of the panel, and to hold the ribs, hinges etc.
I could have shaped the one piece T E to taper, but by using the two piece method I used lighter wood and installing the hinges was a bit easier.
If I had a hill to fly from any where near me I would get another one and see if I could do a better job this time.
Instead of Base-Jumping how about Base-soaring

Theres allways a way (thats what I used to think years ago)