i recently purchased a topbox kit and it was working fine in tc mode using the preinstalled ni .15 ohm coil but it finally died and changed over to the ss coil that was supplied in the kit now im having a problem when i fire the unit in ss tc mode the wattage drops immediatley to 1.5 to .5 and the mod wont fire i thought it might be a ss issue for i removed and installed the ni coil again after letting it cool and the same issue is occuring currently i have it running in wattage mode with the rba installed and it seems to be working ok but would rather be running it in tc mode as this is why i purchased the unit does anyone have any ideas what could be causing this ive completey dissasembled and cleaned the unit and there are no problems from what i can see