Last year I ended up selling all my mods, chargers, batteries, etc. Everything was so finicky about what worked with what. The batteries were not true to size , so the size that the batteries were supposedly, did not fit in to every mod. Some carts were good some clearos were good, but still not uniform.
Then I bought an Ego vv, and a mini protank, and finally got some consistency and a satisfying vape. So that's all I do now. I see that the aspire tank has a different coil in it. I wonder if it's better or worse that the kanger coils. But I have to say with the mini proline tank and VV ego's and like, I can now rely on what I'm getting without playing musical chairs with the mod and the atomizers/carts/etc.
I think the right system has a lot to do with whether you can stay off cigarettes. Fussy equipment and poor performance make it hard to trade in cigarettes for. Except for many people here who are always willing to tinker. Without their genius and curiousity, we'd be no where. Who better than a smoker/vaper to discover what will work.