I don't know how many lemons are lurking out there, or how many users are being misguided by the operational issues of each mod. Evolv, in their two incarnations (first batches, and last ones), YiHi, in its first TC-controlled chips and the so-called 'simplified-ones', like the SX130H, and all the other manufactures, from which Joyetech with their VT/VTC series prominently arise....
Because sometimes I read you and I suspect some indigestion of procedures, coupled with the always present chit-chat about coils, wrappings and all that jazz...
In my experience, they just work nicely. I have only got the IPV D2 and the VTC mini. First one, even being simplified from the SX350J, works much more like it bigger sibling, or just works. The user is the one and only in charge of things, to recognize the 'new coils' and setting them accordingly at room temperature with the simultaneous key of the '+' and '-' button. You do not do that and very quickly you get into trouble. You do that at the wrong temperature and you'll probably get dry-hits. It's just that simple.
Now the EVIC VTC. Well, it's true that it asks for the 'new coil/same coil' question if it is properly re-initiated. But to be honest, I haven't done that up to this last time, when I've read the several posts about the 'fire without atty to force the new coil recognition'. Yes, it does that, but I think it's just a remnant of former procedures, much following Evolv's ones....
... because I've always acted with it just like with the IPV D2, that is, I change atty, unlock the resistance, and lock it again at the new value. It doesn't matter if the mod asks, or does not, for the 'new coil' It doesn't matter if there is a new coil....with the exact same base resistance... Joyetech has mimicked the behaviour of YiHi chips in this instance just to ensure the ultimate user responsibility... if you re-lock the resistance properly (just the same that YiHi chips, but with different keying) it'll work.... no matter if the mod 'remembers' to ask you for the newness of the damn coil, you surely know it...
...because you know it, don't you?
Each time I've run into trouble, was because I did know that, but I didn't act accordingly (
those silly humans prone to forget things!). Once I cooled down things, just take some blank hits, without firing, if the atomizer hasn't got warm, and done the proper procedure (
it wasn't so hard, was it, silly human?, would be a good screen prompt....

), it runs again as it was expected.....
And just up today, I didn't reckon that it can prompt you about new/same things........
...of course, YMMV if there are, in fact, wild lemons running downhill! Mine's not!....
