istick 100w tc issue problem

Hi i am pretty new to temp control vaping and i have seen that on my mod (iStick TC 100W) the build of parallel 316l ss spaced 0.2 ohm at around 255C is the same as a parrallel 316l ss 0.4 ohm non spaced at 130C.Is this normal or is it a problem with my mod. The results ar on a tcr value of 92...

I've had this mod for about 2 and a half months at this point, and while the mod itself works great, I noticed the paint on it chips horribly. I do sometimes have it in my pocket with my keys/ my phone, but there is no reason that it should be THIS bad.