Interesting that what RIN is promoting is not consistent with PPL training.
I though that the upper speed for the RIN was about 18 Kts! On C130s you turned onto track, looked at the drift meter then applied it.
Maintaing track is all down to experience and the PPL trainee does not have it, so they must be taught how to recognise where they are in relation to track and what the options are for correcting. In my experience a young pilot will fly an accurate heading and height but fails to recognise when its not working. The older pilot may fly less accurately but seems to have more situational awareness (experience of life). Once they are uncertain they panic, look at the map and jump to irrational conclusions, because they are not using the clock.