Hello all, My first ever rebuild was fantastic. My subsequent ones have a problem: the yarn wick burns thus I get a burnt taste. Here's is the result after 4-5 3 second puffs. Left is the wick, right are the flavor wicks. As you can see those are burnt as well, both of them, although all are soaking wet with eliquid. Coil has 2.5 ohm and vaping it at my regular 7.5 W. Any idea what I did right the first time and wrong all the next 3-4 rebuilds I did?