Hi I have a question to ask the pros here. I currently have a flavor which somehow burns my wick and coil a lot faster then the rest. Like for example I can vape on like 1~2 tanks on my other flavors but for this particular one, I vape for like half tank and it start to have burn taste and the amount of the black stuff build on it was a lot which I don't know why. I tried rewicking and stuff but somehow the same problem occurs to me again. Anyone know wads the issue with it? Thanks!