I've been using my 5ml Nautilus tank with 1.6 ohm BVC coils for a few months now and am curious what wattage you guys who have this same setup are vaping it at. Also, how long are the BVC coils lasting for you as well. I assume the higher wattage choice would equate to lesser days of use with each coil. When my 1.6 starts to read at 2.0, I start to notice less flavor and vapor production and swap in a new coil. For whats it worth, I stay in the 8.0-9.0 Watt range with these coils and am curious if 10 watts or more would impact the life of each coil.