I don't
know nuffink, but I am truly curious about what is doing your coils in. I vape some of the same juices you use, from Derall, the same vendor. I'm using GS Airs, GS Air Ms, and once in a while aa GS Air MS. Same tanks. I use 30w isticks, mostly, and once in a while an old istaste vv/vw or a 1600 vision spinner II clone. Other than the original, installed eleaf duds (one to two days, then belly up), I think I may have had two or three other duds in the past four months. Given all the similarities in what we are doing, I cannot think of a reason for your short coil life.
While you are getting into rebuilding, you might want to get some of these...
$6.39 Replacement Coil Head for Eleaf GS Air Clearomizer (5-Pack) (1.5ohm, 5-Pack) at m.FastTech.com - FastTech Mobile
For reasons unknown (probably a line of code that drops the price on slow movers), the unit cost for the five packs is now lower than for the tens! If you order three five packs, they are about
$1.20 per coil, free shipping, and delivery by sea turtle on crutches. Unfortunately, they are not tie dyed, and don't have Herb Alpert LPs installed.