I'm sorry to jhear that... From my experience, dual coils should really only be left to the sub-ohm mech and high voltage, stacked battery realm. Places that sell DC gear don't really warn that a dual coil needs twice the power of a single coil to get a good, strong vape.... so where single coils sit 6 to 12 watts (in general), dual coils really need 12 to 24+ watts. And even the best regulated devices (short of a uber-priced DNA20 mod) out there, on a single battery, need to be maxed out to just to get into the low part of the range and that may not be enough.