You can get around inaccurate reported temperatures by just running a temperature tower for your filaments to find an optimal printing temperature. This way as long as your thermocouple reports values consistently (despite whatever offset from reality it has), you should be fine.
@C.Harris yupyopu can… its justn if i want to print with temparatures up at say 250 to 260 for Colorfabb XT or XTCF20 (with tungstn nozzle) then i cant actually reach those temps 