indeed, and this mystery gets more curious when you consider that
some Grevious's have Cyborg. Some do not.
some vaders have cyborg, others do not.
can a repair 10 be used on Vader? or, can he only be healed by heal and bacta etc?
come on, Obi Wan even said it "he's more machine than man now, twisted and evil".
I think the Vader thing was so that you could only swap to a specific instance of Vader,
you couldn't bring in that Vader that lets you bring in a fresh Vader of Lothal or something.
they wanted that specific playset/RotS Vader to be the only one you could swap to via that ability.
If it had have been worded:
"any character that counts as Vader >x,y,z points"
you could hypothetically have brought in all republic faction anakin skywalkers... hehe.
so,
I'd say, yes, you can have any imperial faction Anakin as a vader under that points threshold.
if we look at the glossary,
Vader counts as Anakin, Anakin counts as Vader.
thats the P-NP hyperdefinition loop right there, thats the apparent paradox.
as Bertrand Russell would say "is the set of all things, does A contain itself?"
so, it's a little different to the Dooku/Tyranus thing.
after TK421, that, internal strife and betrayal etc...
we now have a few ways where we can have
multiple versions potentially on the same squad.
you can have 2 lukes on a squad if you killed TK421...
until they locally ruled that TK421's luke overrides any other luke in play -
what happens with force points and hitpoints, or if you've been hit by cortosis gauntlet and now
are forced to be blaster luke?
Is Luuke also Luke?
similarly, if a betrayal on a Han means a Han is on your squad,
but you've also got Han Solo in Carbonite... what happens if you 'thaw' the Han Solo in Carbonite?
does that mean you have 2 different versions of Han Solo in play at the same time?
this one is a very rare special case.
a lot of folks are thinking unique is not an at-any-time global while the game is played,
it is 'only for the purposes of squad building'...
others think, Unique is a constraint that applies throughout gameplay.
that's where Jak is coming from I think - it should be an any-time global,
that you can only have 1 unique of that name on your squad, at any time...
ah, the joys of SWMinis "special relativity" hehe