Whew! That would be scary. I think it would be fairly easy to get seperated on a night dive there, it's kinda gloomy there in the daytime even isn't it? It was when I went, I couldn't see more than 5'. Nope, no night dives at LJS for me....
Yeah, the vis was around 8ft. I turned away from my buddies for a second and couldn't find their lights again. I was a new diver with only about 25 dives under my belt, with only 5 of them cold water/low vis too.
But we did an early morning dive there the next day and it was a great dive.