Hi everyone, I am currently using the GS 2200 mah Ego Twist 2 with a mini protank 3 and an adjustable airflow control. I use the new Kanger dual coil enclosed wick coils at 1.8 ohms. Is this the same as using a single 3.6 coil? Also what would be the highest voltage I could use without burning the 1.8 ohm coil out?