wow, that is a lot of things to consider. I thought it was as simple as making sure no shorts on preferred coil and testing on ohm to make sure its ok. I don't sub ohm.
I have about five provari and I probably should try it out on all . I just never had an issue on anything thing else BUT the kayfun.
my best quick and dirty diagnosis....the center pin on the kayfun isnt touching the brass button in the threads of the provari. try to adjust it down so that it sticks about 1mm below the rim of the threading. should vape like a charm after that.