In recent years, I have run all my antennas inside the fuselage, allowing the excess to trail. But, recently we had a problem with the new Twist 60 with short range check and servo twitching. We traced the problem to the antenna being routed through the fuselage in close proximity to the very long servo extensions needed to reach the rear-mounted rudder and elevator servos. Pulling the antenna out and routing it outside solved the problem.