is there anyways to tell that you are close to burning a carto before that "wonderful" taste? i will be getting my bottles of liquid in a couple days and once i do i will be sure to refill often as to avoid this, but until then is there a way to tell before that point? mine still was producing quite a bit of vapor then all of a sudden. oh my. one of the grossest most unforgettable tastes ive even had to experiance. this happened this am and i can still taste it in my mouth. that carto went flying into the trash!