yeaaaa, been using my GGTS for a week now. What an incredible mod. It is truly a work of art. My friends that dont vape are even impressed by it. I have a question, is it normal to have a hissing sound while vaping? I have a i6 901 atty and it constantly hisses. If thats normal I can live with it, just want to make sure I am not doing anything wrong. The GGTS is nothing short of incredible. Now I just need the new AFS to match.