That number means nothing to me. Where does it come from? I know, what a dumb question.
That's the number you quoted regarding what you see when you get in TC-SS mode on your machine. I think it's a bit high; rather than .001, I think it ought to be in the .0008-.0009 range; but this will depend on what grade or alloy of stainless you have. That number is the TCR; that is the Temperature Coefficient of Resistance. TCR is a fancy title for a simple concept. All metals directly vary their resistivity to current with temperature; that is as temperature rises, so does resistance. Some metals do this more than others. How much a metal does this is known as its TCR. Some metals do this in a very even manner; that is the difference in resistivity between x degrees and x+1 degrees is the same, or nearly so, as the difference between y degrees and y+1 degrees. This quality is known as having a "flat TCR curve" because it graphs as a nearly straight line. TC vape wires are chosen from among the flat TCR group because it makes the math easier for the chip to do. The adjustment on your mod is to allow you to change the number to make your TC a bit hotter or cooler if you want to; to get as close as possible to the exact TCR your particular alloy needs to be accurate.
Here's a list I cribbed from another site:
Every type of wire has different Temperature Coefficient or TCR and here is the list of the most common and uncommon wires used to vape:
Ni200: 0.00620
Ti01: 0.00350
SS316L: 0.00092
SS316: 0.000915
SS317L: 0.00088
SS317: 0.000875
SS304: 0.00105
SS430: 0.00138
SS410: 0.00155
NiFe30: 0.00320
Tungsten: 0.00450
Platinum: 0.00392
Nichrome: 0.00040
Gold: 0.00340
As you can see from the quote, Stainless TCRs run from .00088 to .00155 depending on specific alloy. (You almost certainly have SS316 or SS317, which are the most common.) If you don't know which alloy you are using, then just go with the .001 figure as being somewhere in the middle of the list. If you do know the alloy, use the list and change the numbers to the one specified.