I always epoxy the wing halves together. I'll keep an eye out for this at my field. I would hate to see someone lose their plane, due to what the mfgr says. I have 15 years of building experience. I can match the best of them. Most folks don't realize the G forces that are placed on our models. Relying on a piece of tape to hold two wing halves together is unsafe and absurd. Sooner or later the tape will fail, epoxy won't. Good luck with the next plane.