Well, are you? Do you switch flavours back and forth on one coil? Do you switch coils when switching flavours, or keep multiple tanks at hand with different flavours in each? I've been vaping for about two and a half years, and still haven't found the one juice to rule them all; variety being the spice of life and all that. I usually have a few tanks going with a different flavour in each one. Sometimes when one runs dry I'll fill with a new juice, but I find few that don't leave a ghost of the former in the aftermath.