My kanger coils last for weeks, weeks !. Even after i've abused the coil, with what might be considered too many volts, they're still going strong. You know, the tank gets low, there's less pressure, so the coil tends to flood, that thing !. I'd just shake it out, turn up the volts, vape until i get a dry, burnt hit, which more often than not doesn't happen and the tank gets all used up.

Doesn't seem to damage the wick at all. I suppose if there's plenty of liquid in the wick then it doesn't get a chance to burn.
I expect if you are burning your wicks after a day then you are going over the recommended voltage for the ohm's of the coil. I use a 2.5 ohm coil and vape at 4.3v. It's always the same, unless it floods, which happens when the tank is low. Like clockwork, turn up the volts to 4.8 and finish the tank. Refill and start back at 4.3v again.
If i were to fill my tank with a new liquid and it doesn't produce much vapour, then i know straight away that the liquid is crap. I won't turn up the volts to try to increase the vapour production. I'll empty the tank and refill it with something that does vape well, because i know for sure it definitely isn't the device.
The difference, for me, between devices like a protank and a genny, is that the genny will vape anything, no matter how crappy the liquid, whereas the Protank is a little more fussy. So, i use both. I know what works in my Protanks, dark liquids don't, thin liquids don't. But i'll just use them in my genny.
