I have an itaste vv variable wattage and variable voltage and I'm currently using a dual coil clearomizer. My coil is 1.8 and when I check the resistance with my mod it reads 1.8 but my question is when I use charts to determine a good wattage and voltage setting do I go by 1.8 ohms or 3.6 being that it's dual coil? Any help will be very much appreciated!