Well, you are right, it is damn close to perfect
I suppose a built in dampless plug would be a good thing
And maybe a way to make it that the battery is easier to get in and out
Not much else, lol
Built in micro USB port for on board charging is all I would ask for
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I've got twisted coils in mine that ohm out to 0.12 and flavour isn't really there. Had better flavour from my kanthal micro coils




