Which do u guys prefer. Bottom airflow, middle airfow, or top airflow. The akennedy has botto airflow. Huge vapor little flavor. The Cosmonaut and Layercake is middle airflow. Ive never used top airflow. Whats ur favorite?Top airflow wud leak less I think. Thats the only downfall to the Layercake. It can slightly leak if ur not careful to overdrip. And its supposed to be a sqonking rda but it really leaks if u sqonk. I never sqonk. I hate sqonking.