Hi there, just pop a build in it and adjust wattage to taste/flavour/satisfaction. Tinker with the airflow too until you find what’s right for you.
Start at a low wattage, say 10, and work up from there. If you’re on a high nicotine it’ll get a lot harsher as the wattage increases and could become too much. It’s about finding the balance that’s right for you.
I vape 8mg at 23 watts all day long but couldn’t vape a higher Nic at this wattage. My mtl is quite loose at 1.5mm to 2mm airflow. Hope this helps.