Hi. I have a tfv12 tank with an alien 220. I've noticed when I take a pull from my vape it makes very faint poping and crackeling noises and has never been very smooth compared to my friends TFV8 tank. I don't think I've installed my coils incorrectly. Is the tfv8 just that much smoother? I might get one if I can't resolve this issue. Thanks for the help. -Mr. Mavan
