My frst NVG experience was a checkout at the factory with one of our TP's who was a USAF instructor. I then took the goggles home, and drove in the back routes, lights off for a few dozen miles. I could see opposing traffic miles away because they made the sky glow minutes before they came in sight. I had to tape over the car internal indicators, of course. Stunning experience. It is as if I was a different species (no cracks, SASless!)