I've switched over to threading the antenna wire through a short piece of fuel tubing to exit the fuselage to another piece of fuel tubing pinned to the top of the fin. After threading the antenna through the fin tube, I insert a piece of round toothpick to make a friction fit. Why all the bother, you ask. Keeps me from tripping over (don't ask), snagging, or otherwise yanking on the antenna wire during repairs, setup, or transport. When it does happen anyway (and it has), just a gentle tug on the end of the antenna sets everything right again with no strain on the receiver or my vocabulary.