Originally Posted by
Mansfield
I suspect that the N1 bugs will only display max GA thrust; I can't find any reference otherwise.
FCOM VOL.1 11.41.31 describes the N1 Limit page in flight and its associated indications. The bugs will be/can be set at the different maximum values for CRZ, CLB, GA and CON.
Originally Posted by
Mansfield
There is no practical reason to disconnect the A/T when hand flying. Although the purist in me prefers it otherwise, the simple truth is the A/T works quite well and will retard at 27 feet...or it is supposed to, anyway. In the meantime, you can manipulate the throttles as needed, including manually retarding them earlier than 27 feet if the situation warrants.
FCTM 1.37 Autothrottle Use gives some pretty straight forward guidelines on the use of the A/T. Just KISS.