SGSI didn't work with NVGs (red/yellow/green glideslope, gotta turn it off so it doesn't ABC or "bloom" the goggles) and unaided it was always a nice visual aid on approach to a smallboy or an air-capable ship. The looking-through-toilet-paper-tubes while trying to hover was a pain but in the end it was just another skill to learn... and peeking underneath worked pretty well since the dustpan lights were still shining on the flight deck nonskid and hangar face. Been more than ten years for me so take it with a grain of salt.
The NVG kit in the 60B was, to put it kindly,
asinine. Somehow the world's most powerful navy couldn't procure
green lightbulbs in all the right sizes. So instead you turned off the instrument primary lighting (back lighting, not NVG compatible) and turned up the secondary lighting (peanut lights, green and NVG compatible). The radar altimeter was particularly difficult to read like this (pretty important in helicopter flying) and to make it and all of the instruments easier to read a lot of guys would turn on the Grimes lights (green NVG filter) up behind the seats and shine them down on all the gauges. The result was you could see two little green dots, bobbing along in the night sky, from miles away... not exactly stealthy. All because nobody bothered to buy green lightbulbs to properly backlight the instruments.