Different tabac from different blenders comes in various moisture, and even a blend from the same blender can vary at times.
It’s not to say that Virginias are drier than Aromatics, you could get a Virginia/blend that is quite moist.
Drying out your tabac to smoke it will come down to a personal preference, but as it’s been mentioned before, smoking to moist is not a good thing, and how dry, that is something for you to experiment with.
As an example, I have a blend from Ken Byron Ventures, called Anne Cap, which is slightly moist, all it needs is 10 minutes, if I dry it any longer it looses flavor.
Some times almost bone dry is ok, but not dust. Most of the time you take a clump and pinch it and it should feel faintly moist, just a wee bit, but then again, it’s a personal thing.
10 mins, 20 mins, 30 mins, an hour, a few hours, half a day, a whole day drying, just experiment and have fun!