I like my Aspire BDC. I don't think it has a wick but I could be wrong.
There is wicking material in the pre-built aspire coil. You can tear the next one apart and you will find it.
In additional to what bunny said, with which I agree; other factors may be how much airflow is getting to your coil and your
vape style. For example many short puffs in immediate succession act to stoke the coil like stoking a fire....as well, too long of a draw keeps the coil hot long enough to burn the wick as well....sometimes you need to find the right
vape draw.