RE: aerobird not climbing, why gas planes need 4 channels?
I did a simlar reinforcement going across the top of the boom and putting in a nylon tie wrap. Be VERY careful with the drill. You can cut the antenna or the control lines.
If you are faint of heart wih the drill, try just using clear packing tape at the joint between the body and the boom. Holds pretty well. If you pack epoxy in there that is even better.
As for the orange screws. I have had to put a small paper shim under the front of the tail to get it to go up. The orange screws don't always raise the front of the tail the way you expect them to.
Good point!