Well this is a strain in which I do not know a whole lot of background info other than what can be found on the web and I think you are right about Neville being the creator of the strain and from what I am to understand there is only the original Northern Lights and the #2,5,13, etc. are phenotypes. I have not seen any in recent times except for an atomic northern lights available out of Harborside, which is awesome just not really the same as the nl that i remember from way back. The Northern Lights that I was able to smoke back in the late 90's that came from Canada was amazing though! A piney flavor but straight crystal to the max!!!!! It was some unbelievable smoke. I also was lucky enough to smoke some NL #5 that was out of eastern MT from 04-10, also some really great smoke with a very different but unique and wonderful flavor. I don't see NL in too many of the current strains as most seem to be either haze or og influenced but I am sure an old school northern would be considered fire and quite sought after if it were available. I think the flo cut out of co has a slight northern lights taste to it.