Same, although I own quite a few (different models) Kayfuns and will keep them in reserves mainly for the same reasons you stated.
By far the eGo ONE Tron-S, Tron-T and the new V2s tanks with the CLR coils (vs stock coils) are my favorite every day tanks followed the STM 3.5ml tank but only with the rebuildable coil vs stock coils.
I like my STM also and have no use for the Kayfuns. Love my EgoOnes and my GS airs.
Sooooo,how easy is it to recoil an EgoOne CLR?
CLR is a Pro Tank or Evod coil on steroids, it's a recoilers dream!
Especially after the GS Air Coils.
I looked up the STM, I had one and gave it away...hate those damn little screws!
if you can find the original (older) style kanger sub coils
they are actually pretty easy to recoil
they do work O.K. when new, but like other coils, I've just tore them apart from NEW
and rebuilt to my sophisticated standards

