@sky-runner
Yes, to use NGP would be great.
I think the whole Auto Tags has flaws.
The classification relates to the Energysystems of the body. Then the only System that relates more directly to that is HR or Zone Sense. In my opinion the only data to use for the tags should be hr and duration for the Energy System Tags .
When we have more tags Like for the musculoskeletal System them Pace zones, NGP Zones, and power zones would be valid.