I've received 6 neon signs shipped by DHL during the last year. Three had damage and three were fine. All were double-boxed with good packaging (shipping charges were in the $75 range for each one). I've had some BAAAAAD luck with UPS over the years. They actually bent an aluminum pipe that was going to be used with a parking meter! I've had a classic Schwinn Phantom bicycle shipped from TX to WV via Amtrack with no problems, but don't know if they will handle neon.
Jim Winter
The Hot Rod Grille Garage
www.wvpinball.com