First i would like to say great form... I have the same setup TFV4 and bought the TF-STC2 coils stainless steel dual clapton coils, Had the same problems as everyone.Then i watched one of my youtube review of djllsb vapes here is the link https://www.youtube.com/watch?v=XANO6u6EmcY work like a charm vaping the ss like a boss