When I first started vaping, we all mostly used cartridges. We all worked hard at trying to find the best filler and methods, etc., but nothing ever seemed to work well. Dripping quickly became the preferred method for most of us and has stood the test of time. Drip tips added to the ease and comfort of dripping. Although I've moved on to "bottom feeder" types of mods and absolutely LOVE them, I still drip a good share of the time. I have never had problem with juice leaking from an atty when I drip, but then again, I rarely put my PV down or put it in a pocket - if I do put it in a pocket, it's after vaping so the atty wouldn't have much juice left in it.