I've still been too lazy to actually use it on my JT mods ( ) but the Arctic Fox s/w adds many Escribe-like functions and controls, as well as a PC based monitor function for troubleshooting. Good stuff. And David's right about taking care not to try TC too low. It's based on changing res and that's proportional to the starting resistance... higher base res = more change as it heats up = more accuracy. That's more important on our budget mods, but even with a DNA, I'd only go so low.