Direct Dripping, or just "dripping", is when you drip e-liquid directly onto the bridge of your atomizer, instead of relying on the cartridge filler to "wick" the juice to the atomizer.  This IS possible with the ProSmoke but not recommend since the e-liquid can leak into the atomizer or battery causing issues.  Direct dripping is also not needed with the ProSmoke since all of our cartridges come pre-filled with our highly rated e-liquid already!