here's what I did
O.K. so I'm no expert but I read what happened to the other guy's wing and I decided to "implant" a spar in the bottom of my Terry wing. I used a wooden dowel that was a bit thinner than a pencil and cut a slot in the bottom of the wing. Then I cut the dowel in the center half way through, and bent it to fit the angle of the wing. Then I glued it in the slot and sanded the whole issue flat. The spar stops about 4 inches from the wing tip on each side. I have only flown it three times - so far so good, I got loops, big and small, and pulled out of a moderate dive with no trouble. I have my fingers crossed.....
zilla