I keep going back to my evod, I find it best compared to all the stuff I've tried even sub-ohm vaping which i'm not a fan of. I rebuild my coils doing a micro and japanese cotton and its awesome and was wondering if you perefer single or dual coil on your clearomizers. I've found a orginal evod head that is dual coild here http://www.esmoke-x.de/out/pictures/master/product/1/t3s-dual-coil.gif