Wow .. What a story... I agree.. faulty wing joiner..
I'm in the habit now of drilling small holes along the with wing ribs for the epoxy to bond to. I'm not a big fan of the 1 piece wing as the newer designs have wing tubes and the wings are so much easer ti transport. A similar story is that I have a small Reactor that had a glueable wing joint. I wasn't doing very radical manuvers and I noticed quite a dihedral when I was flying .. brought her down and the glue joint failed.
I think you should call GP and ask for a new wing. They will prolly give you one. his shouldn't have happened to you yet.

So .. so far .. Wing failues, Gear issues .. (I can't stand the way this was designed .. ie.. gear attached to engine box) , Tail heavy issues..

With that said.. I'm starting my rebuild this week of the CAP.. I'll try another season with her. But she has alot of company and compatition with all my other large scale planes I own.. so she better behave or she's a hangar queen.

One nice thing to say is that it sure is perrty sittin in the pitts..

Later Guys,

Dan