I have no ADV, seemingly no ability to find one so I have 15 mini protank 3s with different flavors, those not yet worthy of a kayfun. My updated Kanger coils last a good long time, no duds yet. Also love the vape from my Aerotank Mega, had it 3 weeks of fairly heavy use & no problem with the coil yet. I think Kanger's new tanks rock. on the other hand, my Nautilus coils have been horrible, holding out hope for the new BVCs I ordered the other day from 101vape. We all have different experiences with different vendors.
putting them in the kayfun might make them taste worthy of being in the kayfun