I just got the Smok X Cube 2 and upgraded the firmware on the device so that I can do SS Coils. What an upgrade it is. Temp Control on a Stainless Steel Coil on any device is crazy. If you decide to use this device for TC with the SS coils, I would recommend setting your temperature coefficient to the 0.00200 setting and using soft or minimum at a temp of 380F or higher. Lower than that and you cannot get hardly a vape out of it. It is a very nice vape though. Took some time to get it to work and I was getting pissed off at it and wondering if the firmware update was messed up, but I did get it to work.