Last point and BIG Note: Turning up the voltage or power/watts does NOT give you good flavor or really that much more vapor/density.
If your tank isn't wicking enough juice you won't get more vapor, just a nasty burnt dry wick taste or burning metal coil taste (take your pic).
If your running protank II's or III's or areo tanks add/use the airflow controller, buy plenty of wicks. If you chain vaping keep the wick wet by tiping it on the side and waiting for air bubbles... I use these tanks and find when I start getting alot of flooding, gurgling, burnt metal or wick tastes and washing/soaking the atomizer/coil does not work I just CHUCK the atomizer coil and get a new one and I'm happily vaping again. (Messing with atomizers trying to fix things is just plain annoying and ruins my vaping experience).
Recently have upgraded to Kayfun clones and the difference is HUGE. Have learened to build nice coils and run them at 1.5 ohms with my APV mods set at 8 - 9 watts it's PERFECT. Good vape, better vapor production, consistent and NO dry wicks or burnt tastes.
Don't get into the more power and volts is better... burnt juice, wicks, coils, are not better. When I even get the hint of a burn taste I dial it back a bit and it goes away most the time. Different juice may burn better at lower or higher watts and some may not wick as well as others so I pay close attention to this and adjust accordingly.