I have no clue why but my last 3 or so coils have been just burning through my cotton every day. I haven't increased my vapeing at all, and though my current set up is a .3 vs a .4 that I normally do, it turns out like this after just a few hours.

as you can see, it's still got juice but always taste burnt and this was just a few hours on fresh cotton

as you can see, it's still got juice but always taste burnt and this was just a few hours on fresh cotton