Where can i find more information about Rustica? I'm still fairly new to it and don't know where to find definitive information about the varieties, their smoking qualities, and etc.
You might explore the Fair Trade Tobacco forums. Some of the folks over there know a lot about Rustica varieties, how to grow them, cure them, and use them.
If you are interested in the Native American use of Rustica--including curing and blending with other herbs--a book called "Tobacco Use by Native North Americans: Sacred Smoke, Silent Killer" is the best place I've found to begin.
If you are interested in the Russian makhorka version--very similar in curing to the common Native American version--I'd do some deep Googling. There used to be pamphlets and articles on line about makhorka curing methods and uses.
My impression is that there is a great historical divide between Rustica smokers and N. tabacum smokers. Because we live in a largely N. tabacum world, Rustica is regarded as "bad"--harsh, cheap, good mainly for insecticide. And Rustica smokers felt much the same about N. Tabacum. The Native North American tribes, at least in the beginning, loathed N. tabacum and often refused to trade for it, and the old school Russian makhorka smoker apparently had zero use for "regular tobacco" (N. Tabacum). Without his Rustica, he simply would give up smoking. This may be why until the introduction of HH Rustica mentioned above, there seem to have been few, if any, commercial blends that combine the two.
In other words, if you're smoking Rustica straight, there are several or more traditions you can look to. If you are blending it with N. tabacum varieties, you may be entering largely uncharted territory.