Ethereal. I've only had one ethereal balun go out, and I'm pretty sure it was lightning. If I ever talk to Atlona tech support again, it will be too soon. I had great success with atlona baluns for about 6 months. Then after about 6 months on the field I started having failures. It was like they would freeze up. If you disconnect them for a few days, they usually work again.
Civil War reenactment is LARPing for people with no imagination.