I may be wrong, but aren't Virginias usually quite mild in the nicotine department by nature? Something about the amount of nicotine your body actually absorbs... There are others who could explain this with a better base of knowledge, but I believe this is why it's been difficult for you to find a very strong straight Virginia... Maybe go for a Va/Per, in which the Perique will help your body absorb more nicotine from the leaf? Again, someone else will have a more steady knowledge on this. Cosmic seems to know his stuff in this department.