If your blend consists of this order percentage wise:
Virginia 50% Burley 40% Perique 10% it's called a Va/Bur/Per
Virginia 60% Burley 40% it would be Va/Bur
Many of my blends consist of Burley tobacco first, example:
Burley 60% Virginia 30% Perique 10% Bur/Va/Per
I personally find if Virginia's are not aged for at least 3 years I can get a severe tongue bite. Which is due to my ph level, everyone's is different.
Which ever tobacco you use to make up your blends it goes in the order of what percentage you use. Hope this helps.
KEEP ON PUFFING!!!