I don't know if this is an issue but I would like some feedback. I've been using an eVic with a ViVi Nova tank on single coil and it works fine. I just got the Kanger AeroTank with dual coils and now I have to hold the button down like a second before I can vape. It seems to take that long to start burning the coils, however, on the ViVi tank it burns right away. Is this normal or is there something wrong with the dual coils? I really like the AeroTank because the air flow is adjustable and the dual coils give me a lot more vaper.