I spend about 4 hours on this subject alone in our type rating course. It always surprises me how little is understood (even less after the 4 hours). And that applies equally to ab-initio and long in the tooth pilots.
The whole thing is complicated some what by the use of ATTCS which boosts thrust in the case of an engine failure. But also does so in the case of wind shear. However the pilot can also manually select RSV thrust by pushing the thrust levers forward. Depending on the circumstances the thrust you get when you push to MAX could be Normal TO or TO-RSV or GA-RSV.
I know it saves money but the complication it adds can sometimes overwhelm the pilots.