Thank youI rebuild mine at 1.2, single coil. If I'm feeling lazy, I'll take the silica wicks out of the dual coils, dry burn them and then rewick them. It's harder to do but sometimes I'd rather rewick than rebuild the coils. i vape at 12-14W whether I'm using the 1.5 ohm coil or the 1.2. With the 1.2 ohm coil I have to open the airflow a bit more.