I use ca hinges on all my planes. I have found out that the great planes ca hinges are complete crap. They will hold fine in flight. However when I deadsticked my extra and planted it preaty hard the hinges came right out on the rudder. The fibers stayed glued in the slot but the plastic part that was the inside of the hinge ripped out.(They are plastic hinges coated with a fiber material that wicks the ca and holds to the wind) I'm using radio south hinges now.