There was a thread about broken CA hinges on the UCD. Check it out at:
http://www.rcuniverse.com/showthread...33&forumid=230
Maybe Mecam and myself were the only ones with this problem, but I broke a CA rudder hinge, then a CA elevator hinge, then three CA aileron hinges within the first 20 flights. I'm now using Klett and Great Planes "doorhinge" type hinges on my UCD, with no more problems.
But despite the CA hinge problem, I really like my UCD! With a ST 90 w/MCP, this plane is a blast to fly!!