I'm relatively a newbie and definitely new to tanks. Does anyone know why I have a burnt taste on my new 3.5ml tank w/2ohm single coil on 808D battery? E-juice is kinda thick, as it is vanilla. But I peeked and poly-fil seems to be wet. Thank you for any help. I had a bit of leakage too that I cleaned very well at the battery part too, if that means anything.