I've been at this for 4 months now with a Joye 510, and have yet to have an atty fail. I go thru about 3 or 4 carts a day, vaping PG liquid. About every week, I'll switch attys and soak one in isopropyl alcohol overnight. No atty failures at all to date. In fact, I've become so confident that I no longer carry a spare in my pcc, just 3 extra full carts.