I apologize for how dumb this question might sound but when I press the + and power button to move from wattage mode to temperature control mode I notice that it also changes a little indicator in the upper left hand corner that goes from ohm's, to NI, SS, Ti, exc. I'm guessing that is the type of coil material? Anyway does is matter whether I vape on one of those particular settings or do they all give the same vape / am I messing something up by vaping on the wrong one? For some reason it seems like if I use the SS setting I get a harsher hit than the ohm's setting but maybe it's all in my head?