RE: GP Cub ARF - Are struts critical?
Well, I went the epoxy/Coke bottle (actually Dr. Pepper) route and replaced two hinge points on the left wing. I pinned them too, just like RamDuster did. Seems to be pretty solid.
Flew it once, then noticed the right bottom hinge popped. I'll just replace them all with the plastic from the soda bottle.
Even if the plane didn't need the struts, it just wouldn't look right without them. I dream of the day when I can take this plane out for four or five flights and bring it home not needing any repairs on it.
Thank you again for your suggestions!