I use .30 kanthal 5 wraps with 3mm silica 5 wraps gives me an ohm on each coil so comes out 0.5 wouldn't advise you to do this with 18350's as the amp limit is too low u should use vapecalc to stay safe here is a chart to give you an idea of kanthal wraps and resistance remember if you roll two one ohm coils then it comes out 0.5ohm this chart is based on single coils
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