I basically vape 0 in my drippers, especially when cloud chasing, but then will go as high as 6 in my tanks, and sometimes 3. I am considering going to 0 all the time. I love vaping, just not sure I need the nicotine any longer. Whenever I ask for samples, I always ask for 0, as it is so much easier to throw a new wick in a dripper, and give the new flavor a shot that way.