I can have a juice that I've been using for a week straight, then all of a sudden it will make me cough. I have 6% nic that I usually cut 50/50 with a 0% nic so I'm in theory hitting 3%. Im sure there are just as many environmental factors as there are relating directly to the mod/juice mix. For me I've noticed Im more likely to cough when I vape after smoking a cigarette. Also, first thing in the morning. My girlfriend, who was a smoker for many years before she got pregnant could NEVER get over coughing from a vape, ecig pen or on this Itazte mvp...even 0% nic. Just out of sheer curiosity do you go hours between vaping? That can make me cough for the first few pulls. Also, 18% and 12% nic are pretty strong. I have a 24% coffee here (I was a pack a day smoker for 10 years) that I cant touch to save my life.
Did anyone realize that original post was from october? I just noticed that XD