Hi everyone, since the 15.20 update my VO2 max dropped 5 ml. I thought the new trail running support was supposed to help with the underreporting of vo2 max due to the increased effort it takes to run on trails. My experience has been the opposite. Also, my recovery time is longer than before. I don´t know if the problem lies in the gps tracking, in the hr monitor or in the softwere in general. For now I have the vo2 for trail run on. Any clues?