Hello guys, im quite new in rda world, im im using set from the title and i have a problem building dual coil system. I know that ijust s battery's ohm capacity starts from 0.15 and i've bought vandy vape fused clapton coil 0.43ohm, to use two at the time and make it 0.21,5. But it still doesnt work. Any ideas why? This base works perfectly when only one coil is installed, i've also tried clapton helix coil 0.3ohm and it also works only with one coil installed.