Hi, I have been cigarette free for 6 months now. I have a Russian 91 and a nautilus and use a Sentinel MI6. The reason I went to the Sentinel is so I did not have to change the battery constantly. Anyway, I am not a cloud chaser, I just like a nice throat hit and good flavor. Do I need a VV/VW? I have used them in the past and always had troubles with the volts/watts changing on their own, then getting a burnt taste. I would chalk it up to user error but it happened with both a ZMax and Imotion. I do not know if I will get a better result using a VV/VW. I have heard the dna 20 and 30 are great but again, have been scared off because of them having a mind of their own and changing without me changing the power levels. Any info is greatly appreciated. Thank you. Mark