I think i new firmware treshold is auto detected. I did treshold test in november. It was under: Run->Training->Treshold test. Right now i can't find it.
That is correct. With the new firmware, there is no guided lactate test for running or biking. LTHR detection can happen either with the wrist HR or a chest strap.
A detection can happen after an effort way lower than typical threshold (for example an easy and shortish run).
