From a friend who has a reserve friend somewhat familiar with the program ... the helmets are apparently form fitted, and get locked up in a box once you leave. No more having your helmet hanging in your helmet bag in your locker ... as I understand this second hand source, as we do now with form fit helmets you don't have helmets in a pool.
I like the comparison Engines made with the NVG kits and the challenges they posed to the flight equipment support concept. Seems very apt.