Ill defend the nzonic till I die. Copper pins. Solid and I mean solid construction. Smooth threads. Nice reverse threaded locking ring with a pretty smooth button. Not as nice as a paps button but still fantastic.
My only complaint is that it isnt a flat top cap. Has a slight bevel which works with some rda. Id rather have the flat top. Yoi can buy an after market one but they are pricey.
All in all, my v2 fires every time. Not a single misfire, always reliable and looks pretty nice. And the voltage drop on mine at least is less than .05 of a volt. So yeah.
In nzonic I trust.