I just got done rehinging the ailerons on my UCanDu. The guy I purchased it from used CA hinges and appearantly he didn't do it right as the right aileron came off one day last summer during flight. I went w/Dubro pin hinges and 30 minute epoxy. I used a great planes hinge slotting machine to make the job easy and rubbed petroleum jelly on the hinge pins before installing them.

A note about CA hinges. I once had Goldberg Profile 330 funfly plane w/CA hinges. I had all the throws set to beyond recommended full deflection and had the hinges in the rudder crack and break at the flex point over time. I'll no longer trust CA hinges in 3d applications.