So far I haven't had any problem with Hanger 9 or Seagull CA hinges that come with the ARF. I have bought Great Planes CA hinges and they seem to hold up well so far, as well.

I use them in my .60 and .90 planes. My planes are over a year old with more than 40 flights so far. If they ever do decide to fail, I'll let you people know.

Pete