I really agree with this. It's a little easy to do. One, your not paying attention and you've drained the tank and two sometimes there is a bubble in stead e juice. I tend to hit harder trying to figure out what's up then that atty is dead to anything except clove type e juice....I just treat the burnt flavor like an additive, to a point. But how do we dry burn a ERoll atty then? We don't? I thought people were doing dry burns with them?
If it's a cartomizer with burnt filler no amount of voltage twiddling will fix the problem. Burnt polyfill is forever. The cartomizer (the metal tube with the cottony stuff in it) needs to be replaced.