sharing my experience with the nautilus bvc coils:
for my first time i bought them from a shop in France, and they had this writing on the back:
and they where just great,
a great taste from the beginning,
so great i asked my self why should i bother rebuild my RTA.
so i went to FASTTECH to buy them cheaper and got them in the box with the scratch code and all,
but the writing on the back was like this:
i tired them and the taste was very bad,especially at the beginning,(very bitter)
after a while it got better obviously but far from what i have experienced with the previous one.
it was such a bad experience that i just stopped using my vika fantasy.
last week for some reasons i had to use the vika, and i put the first coil i mentioned(the one from France)
and i was surprised from the great taste again.
so, i don't know if aspire changed the wicking material, as well as the writings on the package ,
or they just send better quality coils to regular USA Europe shops.
maybe also with better quality check,since the resistance readings i get from the FT coils are mostly of.
(all of the above with the same e-liquid i vape for many years,so i know how it should taste and from different coils batch/packages)