Titanium is a good TC wire I've found. I'm rocking 2mm ID claptons with a 24AGW Ti core and 38 AGW Ni80 wraps in my Bellus ATM. Amazing flavor, and I can take good 10 second drags without worrying about dry hits.
The mod won't read the fluctuations in the outer wires because 38 AGW Ni80 has such a high resistance that it doesn't matter.