Hi Cranky, welcome to ECF. The thing with pipe tobacco is the way it is cured it has a lower PH level (alkaline)and is designed to absorb the nicotine into the mouth like cigars and not the lungs.
Cigar smoke and smoke from traditionally cured pipe tobaccos is alkaline, so
nicotine from these products is readily absorbed in the mouth. Inhalation is unnecessary for nicotine absorption from cigar smoke.
Moreover, inhalation of cigar smoke is difficult because the smoke is inherently irritating.
Freebase, alkaline nicotine tends to be more in the vapor phase of cigar smoke than in the particulate phase, and, as mentioned above, is inherently irritating.
While inhalation of cigar and pipe smoke occurs, especially in people who also have smoked cigarettes, it is not necessary for nicotine absorption.
Cigarette smoke is more acidic than cigar smoke. This characteristic results in the nicotine from cigarettes mainly being in the ionized, non-free base form, dissolved in the smoke particles instead of out in the vapor phase. The nicotine in cigarette smoke cannot be readily absorbed in the mouth or nose. Inhalation is necessary for absorption to occur. Inhalation is facilitated by the fact that cigarette smoke feels less harsh in the throat than does cigar smoke.
This is related to nicotine being dissolved in the smoke particles instead of being in the vapor phase. Claims of “mildness,” which have been a staple of cigarette advertising for much of this century, reflect this property of cigarette smoke.
I have not seen any info on the alkaline properties of e-liquid but will keep an eye out. Although it would be nice to know which is best, mouth or lungs, I think I may have to research this further. I hate it when people make me think, lol.
Anyway, nicotine levels in real tobacco can vary greatly from crop to crop and also depends on how it is cured. You might try a search for nicotine levels and tobacco curing methods. You will need to know how your brand of tobacco is cured.
Start with 36mg and go down or cut it with VG if it's too strong. If you get too weak liquid at first your stuck with something you will never use because you can't really make it into 36mg if that is what you need.
Hope this helps, Vince.