Agg, rather than over complicating a rather simple process, how about this.
Lets examine why the memory power and pitch settings are stipulated, and what they give you.
Realistically all they are designed to do is too keep you away from the ground until you can identify and manage your airspeed via alternative methods, they are in essence a basis from where you can start and are just like half the other memory items on the 777 in that they are as much about liability as they are to provide safety.
I KNOW that in the cruise 2.5 degrees and 80-85% N1 will yield level or near level flight within the airspeed limits, 4 degrees and 70% N1 is pointless, likewise down low, lets say below 10000ft or so, the numbers make more sense because they are designed to keep you away from the ground.
As for training departments, well where I work there is likely to be both a common sense approach as well as a slavish adherence depending upon the ego in the seat behind.