I've been able to reduce the number of NI 200 turns so that I can fit functioning coils in every atomizer I own. Previously I often had real difficulty making coils fit when I was using other TC mods, especially since spaced coils seemed to be far more reliable compared to "microcoils". So far the SX Mini has performed perfectly and removed the TC frustration factor that was keeping me from believing in the potential of temperature control. I absolutely love this device. Now I'm hoping they produce a twin parallel cell mod in the future. That's the only thing I can think of now that would make the SX better.