@santero wrote this informative response to @JAWS questioin. I thought I’d preserve it here, too:
(Cheese question? - #127 by santero)
“UGORG#1” is a exodus cheese x blues bx2- mating, made by underground originals in UK.
(it was inspired by silas’ mating with he same formula, but a different male = different results.
they made two versions over time, both same as good.)
“Blues” is a clone only from UK = cheese x blueberry.
even tho, today people claim it to be a pure skunk, it’s not.
(and there’s also a seedline called that which is underground
originals bx2 of that bridged via blueberry.)
“exodus” is the collective the skunk #1-cut was shared from.
hence the name “exodus cheese”, the exodus is the one and
only original clone, but genetic drift made her pale out against
many of the bx’s and crosses that are around today.
“lost skunk” is a seedline made by silas in UK, which was the inspiration
for underground originals to re-make it and sell it … (which means: calling
a “ugorg#1” → “lost skunk” would be not correct!! 
)
__
@JAWS
those early pics look quite nice, but there’s no way in hell anyone could
seriously tell one or both or none are the original, lol … growing them out
and checking for the common markers would be the only way, imho.
the dark green i see and the thin leafs and mini-plant for her age = all great
markers already (but many of the bx’s and crosses also show the same, so
it’s a gamble at this point.)
please pool your wealth and cooperate, everyone !!
(b-cuz competition is just commercial bs/boring )