Vaping will rarely make me choke and has only done so once in the last year or so. But sometimes I will hand my vape to a friend and they will cough their lungs out like they just took a bongload. Did you cough when you first started vaping and cough less when vaping now, or still always cough up a lung, or never got 'coughy' from vaping at all? Do you think it is force of habit, like a learned response? I have taken a few vapor bongloads that made me cough up a lung but that is really rare for me. The noobs always get small hits when vaping, and almost always start choking. I don't get it. Usually they are heavy weed smokers though. I know a LOT also depends on strain as well as the vape and size of the hit. But just in general I have noticed people new to vapes cough like mad and they generally take fast drags that create little vapor. And I only have owned a Solo and an Air, which are not gigantic hitter compared to a powerful plug in unit. Though they aren't a slouch either.