I'm curious about the dark Virginian definition as well. Most cigar varieties aren't flue cured are they? I know some tobaco is used for different purposes (i.e. pipe, cigarette, chew, cigars...) I would think maybe the way it's cured (flue vs air vs sun) would impart different characteristics. I could be totally wrong but my impression is sun and flu curing seem to be used to keep a higher sugar content in the leaf. I would also think both of the methods could potentially slow down the normal aging/fermentation cycle by reducing the enzymes through heat or UV and might be better for cigarettes and pipe use. Seems like air curing followed by fermentation would be the way to go for cigars in my mind.
Maybe
@deluxestogie has some insight into the dark Virginian definition and could suggest what curing method might be more suitable for the different purposes.