skyjedi2005 said:
But that is later. In the 1990's the terms were used as if they were the same thing. or as if Licensing did not allow the use of the term Sith.
Darth Vader was already known as the dark lord of the sith and in Zahn he is referred to as a dark jedi, that is frankly stupid.
It wasn't known what Vader's "Dark Lord of the Sith" title meant. For all we knew, he received the title from the same spirit that gave the title to Exar Kun.