so i am kinda of new to this refilling for dripping, but i decided to break out a cool cart blank and give it a try... i only put about 5-6 drops in, just to see how this would work for me.. it was amazing, the flavour was right on - excellent all around - i was a happy girl... so this morning i decided to top it off and after a couple of vapes, it started to have this funny aftertaste, so i topped it off again, 5-6 drops and vaped.. well now it's starting to taste like its burnt... anyone have any clues in what i am doing wrong, if anything... i'm just not sure why this is happening....