Why
Most of my mods (all mechs) are 18xxx battery models (18350, 18500 and Telescopic) in 22mm or 20mm diameter. However I have a number of "slim" atomisers: Sophia (with slim tank), Spheroid, EBaron Dripper Spiral, Grail for Diver, Grail306, Mark T Infinity, and Bulli A2. I only have three...