Clouds are all about airflow. The more open your rda is, the higher the cloud production to an extent. Be sure to aim your air holes directly for the coil, and when you wick your coil be sure to leave a small gap between the bottom of the coil and your wick. This enhances flavor too, so if you're not using 0 or 3 you will get a stronger throat hit. Make sure the
juice you're using is either 'max vg' or 'vg' based as vegtable glycerin is predominantly what gives you awesome plumes. Finally, your drip tip....yes you're drip tip. If you are aiming for big clouds, you need a drip tip with either adjustable airflow or stationary air flow. Hope this helps!