You don't need the "Aero" for the 306. Cisco even admits that the difference is so minute that they may stop making them (the "difference" he is speaking of is when comparing Cisco Aero 306 vs. Cisco 306). I'm a 306 junkie. Even after trying a few i06 (very good vape, respectively) atties I find myself going back to a Cisco LR 306 and my DCA. I drip my "luxury" juices like this. I DO believe that the standard "Cisco-spec" 306s ARE superior to most of the other 306s I have tried. What I am really eager to experiment with is one of IKVs HR 306 atties on my Provari. Anyone had any experience using +3.0 ohm 306s on VV devices? Love to hear about it!