I had the same thing happen with claptons as well. it was dual 24 g ss316l core with 32 g a1 wrapper spaced coil. Honestly, I figured it was my build and didn't feel like messing with it, so i went to a singled wire spaced dual coil build with just ss316 and it's been great. To test if it was the coil i built, the atomizer or something else, i ordered some coilology ss16 complex coils try on this atty. For me, craftsmanship of my coils may be the issue. I am using the vandy pyro rdta. But on my themis, with the same coil setup but built when i was a bit more patience, i dont notice any issues. Coils should be delivered today or tomorrow. I'll let you know how it goes, but i strongly suspect it's the coils i built.