I put the control surfaces on today. I used the dubro hinges and used epoxy. Before installing them I heated some vaseline, then dipped just the hinges in and let them cool and dry. It works good, the epoxy doesn't get in the hinges. I used a strip of credit card, it seemed the right thickness to push the epoxy into the slots, then put morre epoxy on the hinges. I then used 99% isopropal acohol to clean the excess epoxy off after installing them. It's starting to look like an airplane now.