I've been looking it up quite a bit as well, so far what I got is that it if for sure a skunk strain, but than it gets blurred. It seams that it is not Kush, but Cush (2 different strains)and it would be mixed with that unknown indica male everyone is talking about. The origins almost all say South California, but I found others, like B.C. and georgia ?!?
Also, a few people call it mango, but I don't know if it's actually really the same thing. Pretty confusing.
I still want to know...
Will give you some updates if I find some more