I feel my tobacco mixes, including NETs, are still lacking something. Maybe it's time to give TA a try. Problem is I'm not sure which TA to buy. ECX has a 100% one that I ordered. But I remember reading some posts recommending the Rustica TA. Only stocked source I could find for a Rustica is : Tobacco Absolute – Perfumer Supply House Is this the one? The specs sheet says there is some residual ethanol (OK) and toluene (is this fine though)?