My 2 cents, first of all, if you lose an engine enroute your FM will indicate the altitude the aircraft can maintain on the prog page, also, engine failure at V1, until thrust reduction altitude, the EO function will reduce bank angles. I get rid of EO clear after engine clean up so I get normal managed speeds, any thoughts by bus drivers appreciated.
My SOP dictates we use the flap 3 switch only when flaps 3 are selected due to windshear / gust factor 10 knots above the steady state, or proficiency, all emergency procedures ie direct law approach, you must NOT select CONFIG 3 because any adjustment to Vref should be made, reference to Vls for flaps full, the only way for the FMGC to know this is to be in CONFIG FULL.
DL
edited for sp