I see everywhere 32 gauge or 36 or 28 or whatever...but what is it? I’m guessing it’s how big the hole is but I dnno? Maybe a bigger gauge means more cotton can fit in... I don’t build so I wouldn’t know but I do have an rda but with demon killer prebuilt coils and the cotton keeps splitting literally as soon as so maybe the gauge is to blame or even the metal (kanthan)