I can't speak for pre-recall stuff, but my post recall Varmint ADL (Cabela's special) has the internal adjustment only X-Mark and it ONLY needed pull weight adjustment and was easily adjusted from silly light to silly heavy. I didn't see just how light I could go, but I did over lighten at first and it was nearly a hair trigger without tripping under impact or hard closings... I did not need to mess with the over travel or seer engagement, they were just fine already. Not quite high end match grade, but much better than I'd expected given the whining I see about these triggers.
Don't get me wrong, it's not on par with the high end stuff, but it easily and safely adjusted to a very nice field grade trigger. I spent way more time verifying safety and then regreasing the bolt lugs and raceway.