Standby ALTIMETER SETTING CHANGE
Some people say:
During climb, leave the STBY altimeter setting to departure field setting, it could be useful in case you have to come back in a serious emergency.
Other people say: At transition (European transition, quite low) change ALL altimeters to 1013, to have one more crosscheck available for the other two altimeters during cruise, and above all not to have a false, misleading setting during descent ("Have we updated the setting to destination or not?").
If you have to come back in emergency, you will have to update anyway the whole cockpit, and if unable to talk to ATC you have the setting written down on the flight log.
I agree with the second philosophy.
What about you?