I posted a thread on this board a while back, asking the same question in so many words. And the replies I got were that Wood Glue (Aliphatic) while not a strong, is still stronger than the surrounding wood and wouldn't break. I banked on that and used Aliphatic for my wing braces. However, I am also wrapping a 3" wide piece of fiberglass tape around the wing section and epoxying it into position with 45 min epoxy. Hopefully, I'll be OK.