Its been a while since Ive had a bad vaping day. I have overkill in my backpack that goes to work with me. If I blow a coil in my Ihy Pure, then I go to my k100/AGA. If something happens to one AGA, I have 2 more filled and ready to go along with an RSST. If something goes wrong there, I have my Provari and several carto's and a protank. Boyscouts and ARMY taught me well. Stay prepared. Oh and I have 2 of each size battery fully charged and a charger at work.