I smoked American Spirit, organic roll-your-own.
I think that may be why I had problems with a lot of ejuice when starting out vaping. I have never really been exposed to a lot of the chemicals they put in commerical ready-made-in-the-box analogs (to make them burn faster, etc. ).
I picked up a pack of Marlboro's once and it tasted like a chemical stew to me.
When I rolled an American Spirit, if you set it down for a minute, it goes out. There are less chemicals in there to keep it burning down. I also never smoked down to the filter......you could look in my ash tray and people would say: "geez, that's almost a whole cigarette there!" . I just thought it was better not to smoke them down too far.
I've always meant to ask others about this, but it's hard to find people who only rolled their own and smoked organic tobacco to ask 'em.