I agree that no reference book should stand in the way of a good story, but my question is what does this (possible) error say about the story group? Such errors were common prior to their formation in 2013 or 2014, so what difference do they make? Also, the encyclopedia was published only 4 or 5 months before the issue where Vader acquires Kirak's lightsaber, so I'd expect the story group was aware what was going to happen in the comic (story drafts are complete months before the actual comic is published). If the encyclopedia was done before the first draft for issue #5 of Vader was submitted, then Marvel should have known of this. It's not like this information was in Ultimate Star Wars and was 3 years old by now. It's just 4 months apart. As I said in my previous post, this MAY NOT be an error at all, since this is a good rationalization to me at least: Just curious what others make of this.