I started dropping mine in the ultrasonic cleaner as opposed to dry firing / pulsing them, and they seem to last much longer(previously about a month, now I'm not sure as the coils still look good after 2 months). How much do I vape? Hmmm..not 100% sure, but if I had to guess....varies....15-30ml per day....average 20ml day, 140ml week, 500 month...(wow...that seems like a lot, hadn't actually thought about it before).....
Anymore, I vape using TC, using SS316L or 304L. I've never made my own Claptons, I just buy pre-made (Clapton, Fused Clapton, and twisted/braided) wire, and make my own coils. I usually set wattage at about 65w, temp between 400f-500f. I generally don't do sweet juices, but I do quite a few that gunk coils, like coffees, some that contain chocolate, graham cracker, banana, strawberry, greek yogurt , blueberry.....I usually get about a week or so, and then I'll remove the cotton, take the RTAs/RBAs apart and put them in the cleaner for about 3-5 minutes....
That said, I do use about 3-4 RTAs, and 2-3 drippers at them same time, with different flavors....
For example, vaping right now....
Downside
Mother's Unicorn Milk
Smooth Morning Kick
Dragon's Blood
Sucker punch
All of my juice is DIY 70vg/30pg, 6mg nic in pg base...., and I usually don't add sweetener.....
I have to re-wick a few tonight, I'll take before and after pictures and add them to the thread..