Hi ThreadKiller,
Sorry for the late response.
We currently carry a few different TFA tobacco flavorings.
Tobacco Blend (PG) which is a PG based flavoring that is made with PG, Tobacco Absolute, and Ethyl Maltol.
Tobacco Blend (Alc) which is the same as the above, except the flavor carrier is Ethyl Alcohol instead of PG, it is a PG free flavoring.
Tobacco Flavor which is like a cured tobacco flavor, such as what you would taste from cigarette tobacco that hasn't been burned.
Black Honey Tobacco which I don't feel has really any tobacco notes, but that could just be the fact that most of the e-liquids that I vape have stronger tobacco notes and it's very subtle. I taste mostly like honey bear type flavor here.
M-Type which is a popular unique tobacco type flavoring closest to a name brand cigarette of all of TFA's offerings.
RY4 which is TFA's first venture into the RY4 type tobacco flavoring, I am not very fond of this one, but some have used it as a base for tobacco flavor mixtures.
RY4 Asian which is another TFA RY4 type tobacco flavoring, I find this one to be a little too bold for my taste.
RY4 Double which is yet another TFA RY4 flavoring. This one closest resembles the RY4 commercial e-liquid flavoring out there. This is one of my favorite all-day vapes, but there are many who don't care for RY4 in general.
I hope this helps.