Like Alien Traveler , I prefer calling it insurance rather than back up. I currently have 5 regulated box mods ranging from 30W to 150w, 2 with TC plus 2 mech mods, all of which are in my daily rotation.
I also have over 15 RTA's and rda's, but on those invariable bad days when 1 or more of my ADV's decides to either leak or require a rewick or coil rebuild, I drag out the back up squad consisting of 2 Vamo v5's and 3 ego twist w/mini protank 2's while I put the others right.
The one thing I do find irritating about having a larger number of mods are people who ask, "Well, now that you've upgraded, you can sell me one of the old ones." They can't comprehend that the new acquisition is a member of the family rather than an up grade.
I also have over 15 RTA's and rda's, but on those invariable bad days when 1 or more of my ADV's decides to either leak or require a rewick or coil rebuild, I drag out the back up squad consisting of 2 Vamo v5's and 3 ego twist w/mini protank 2's while I put the others right.
The one thing I do find irritating about having a larger number of mods are people who ask, "Well, now that you've upgraded, you can sell me one of the old ones." They can't comprehend that the new acquisition is a member of the family rather than an up grade.