I have a nicstick automatic; regular size battery; atomizer , and clear cartridge (tip). I went to refill my cartridges....and was going from 24mg menthol to 18 mg menthol (due to some throat burn). Well now its super strong....gagging strong. I couldn't find a youtube video to show me how. The instructions seemed vague. The instructions said to put only 2-3 drops of juice in the cartridge......but it wasn't even half full!!! So I filled it all the way up like when I had bought them.......With it super strong now....what I am I missing???? I am still trying to deal with my atomizer needing to be cleaned too.....and dammit I need a cigg.....good thing while my ecigg is taken apart, I still have a few analogs left.