tom775257
I suspect Vilas is referring to phase advance which used to be allowed, moving the thrust levers above the climb gate for a short period of time to temporarily get man thrust / MCT until you click it back into climb when Athr will reengage.
Yes! That's what I remember it was for approach. But it seems to have disappeared. What you find in FCTM is in connection with adverse weather.
WARNING THE FLIGHT CREW
The "SPEED, SPEED, SPEED" low energy warning (if available) is based on the aircraft speed, acceleration and flight path angle. This warning attracts the PF eyes to the speed scale, and request rapid thrust adjustment. In windshear conditions, it is the first warning to appear, before the activation of the alpha floor.