Well i got a new aspire nautilus and it holds 5.5 ml of juice and has dual coils with a bottom air adjusting ring with 4 different sized holes. Sweet i thought to myself so i got one for 29.99 at a local shop. The air flow is much better than my protank 2 but still leaves some to be desired, Anyways the 1st coil head that came in it was a 1.8 ohm and it also came with a 1.6 ohm in very nice gift box. I like the tank after a few days and i like it more after drilling the biggest air hole out to 2.2mm which is as big as you can go without cutting through the bottom of the adjusting ring. The only Problem i can complain about is the coils keep failing and at 3.99 each i dont know if i can afford to keep vaping on it. After 5 days i have had 3 fail and one was bad out of the blister pack. anyone else own one of these and have coil issues? Im using these on a itaste mvp at 4.2-5.0 volts and i clearly say's 3.3-5.0v on the coil heads!!!