I went to Brassard in 2012; at that point he had a one-year free revisions offer, but he seemed willing to do revisions after that first year as well. (They just wouldn't be free.) I don't know about scar correction per se - that you might need to ask him directly.
I also have small, tidy labia minora, which I think is a "trademark" of his. But like Zumbagirl, I'm happy with it.