First a problem with vapor. Watched video on adjusting hardware....vapor increased. Called CS (Kristy is wonderful) and am awaiting newer batteries. In the meantime I have been trying to vape wowbacco 18mg., I draw slow and it hurts my lungs and makes me cough. I also have Cowboy 24mg. and that also hurts and makes me cough. I have been a 1 1/2 to 2 pack a day of virginia slim lights and pall mall lights for 40yrs. I was hoping this would help me. All it does is hurt. Is it the cartos I've chosen or what? I'm not usually a complainer but I am so disappointed. Any suggestions would be greatly appreciated.