Is managing recovery/fatigue just by TSS accurate enough?

[Helvellyn]

@TheBandit

The most accurate of all metrics. Session RPE. Basically, how hard it felt to you, the athlete doing it.

Presumably factoring in a duration component, yes?

In fact, you could probably create a Gross Workout Exertion Score by graphing in-the-moment RPE and calculating the area under the curve.