Thanks for the positive input everyone!

On 60 size aircraft the fuselage is usually long enough that the antenna does not need to exit at the back of the fuselage if the receiver is located near the front of the wing. It is very important that the antenna is fully extended and not coiled up. As jeffo said, keep the antenna away from the servos and servo leads but also the metal push rod ends . That’s not a problem for me because I do not locate servos in the tail. I also use a piece of masking tape on the antenna at the front area of the tube to keep the antenna from sliding out of the tube. It is best to put the tube in during construction. But, often I install the tube when I’m installing the radio when I cannot bring myself to drill a hole in the fuselage to string the antenna outside. I use spots of amazing goop glue every few inches along the tube to keep it attached to the fuselage. You can put the spots of goop along one side of the tube, then insert the tube into the fuselage and then turn the tube so the glue will attach to the fuselage.

On my Tiporare and Howard Engineering Kwik Fli III I installed the antenna on inside the fuselage but I also put the retract gear air valve and power switch in the nose gear wheel well so the fuselage is completely clean. On the Cold Duck I used the small push/pull wire on the power switch to keep the fuselage clean looking.