I have seen your post "The Robert Abercrombie Myth" on Ancestry and GenForum before. It made me do my own research via The Peerage and I determined my Abercrombie ancestors did not descend from the baronets in Scotland.
I am descended from Robert Abercrombie (1715-1779) and his son Major Charles Abercrombie. According to all the posts I've seen by you, you seem to know a lot about these Abercrombies and the ones from South Carolina.
Can you tell me where Robert Abercrombie might have come from and how the South Carolina and North Carolina Abercrombies connect?