I agree with all the above. I used the 5 min epoxy when I first built my Avistar's wing on the joint. I didn't know about the fiberglassing at that time. My first crash, the wing split right on the center joint breakng the spar in half at the same time. Very little damage done that I fixed in abt a week. When I put them back together, I used 1 inch fiberglass tape to strengthen the joint. Flys great again.

And they aren't kidding about what this thing will do after you get proficient in flying. My Instructor has put mine through it's paces and is very impressed with its abilities.

Have Fun!