Maybe not directly related to the OP's question, but I spent AUS $124 + shipping for a kabuki tank for my provari.
There is currently no decent available rebuildable atomiser for this hideously expensive tank so I bought a cuppla 5 packs of the required genuine Aspire coils in the Kabuki order.
The first coil that came preinstalled in the kabuki lasted over a week until I started to get a horrible burnt flavour.
So I installed a new coil. The exact coil replacement recommended for this tank.
I get the burnt flavour after only a tank or two of juice now. Exact same juice, exact same wattage settings.
My point is that the aspire coils are genuine and check out with the manufacturers code etc as being genuine.
But they are obviously NOT as good as the first genuine aspire coil that came with the kabuki.
So maybe Chinese manufacturers like aspire and Kanger farm out their coil production to third parties and even though they come stamped with genuine product stickers they are a crap shoot as far as quality is concerned, and the "fakes" could very well be the same as the "genuine".
Lucky dip?
p.s. I've since bought a Kayfun 5 (clone) with a rebuildable deck so at least now I have complete control over coils/wicking and am back to consistency.
Just sayin'
