RE: Heads up, CA hinges
Years ago we used nylon hinges with the option to pin them, which I think is still a decent system. I currently have started using Robarts for all surfaces and find them easy to install and work great. I had a GP Big Stik that I had issue with last year, the right aileron had several CA hinges delaminated during a lot of snapping around and the airplane went in. On review, the outside (fuzzy part) of the CA hinge was still glued to the wood, and the part that pulled out looked like smooth plastic. GP said they had not seen this before, but agreed that it had delaminated. They replaced the ARF, but tried to claim that most likely flutter had caused the failure???