Hi 
Since you are using it in wattage mode at 66W, here’s how you should start with TC settings:
Start by setting the temperature to 190–200°C. From there, step up by 5°C increments until you find a range that is still pleasantly cool but brings out the flavors (for SS mesh, 200–220°C is usually the sweet spot).
Set the wattage ceiling to approximately 55–65W. This power level is only responsible for the heating speed, ensuring immediate vapor production. As soon as the coil reaches the set temperature, the mod automatically reduces the power (down to 20-30W), ensuring the vapor remains consistent and cool until the end of the puff.
Lock the resistance at room temperature, as otherwise, it can misread the temperature entirely!
Currently, VapeDIY is not yet capable of directly calculating for mesh / factory coils, but I will soon add this option, so with the resistance and material entered, the TC simulation will work accurately for these as well.