Ive posted a question relating to this in the forum however this seems like a relevent area to add to further discussion. Why is it that we use the PG / VG at all? Aside from giving the "genuine smoker feel" of blowing out smoke. Is there some reason it has to be used? I for one, would rather not have to worry about some study comming out down the road about how bad it is. I dont need to feel like im smoking a real cigarette, I just want my nic fix.