The resistance with NKFL could fluctuate if the plastic AFC screw is [so very]slightly protruding. Just give it a half turn or so inwards ~ and it should start working fine.I truly believe it's authentic, I just don't understand why a company with the reputation and respect Svoe Mesto has, wouldn't have their website together better. And my initial thought was that maybe CdV unknowingly received clones somehow if it was. I never had it in my mind that they were scamming or anything.
In any event, the resistance thing did happen again after all that. So I took it all apart and gave everything a visual inspection and clean up. Everything looked fine. So I put it all back together and so far so good. Nothing felt loose at all, but my resistance was a little lower than before, on the same coil, and it seems to be more stable when I remove and replace the atomiser. Guess I'll just have to wait and see if it's settled now.
Ps.: And yes, welcome to the most fascinating rta of the plane[t].