there are several pilots who leave the active FLPN as it is,
and simply continue the approach as a visual one.
Put me down as one of the "several". I can quite easily fly a
sidestep approach visually without the need for a FMC, and
even with the FD's off!
The point is that even though both runways have the same
missed appoach procedure, I think you should activate the
SEC FLPN with the runway you are actually landing in.
Why do you want to push buttons all the way down final
when your head should be either outside or monitoring
the instruments? If you've flown the 727 as you say, why
the sudden reliance on the FMGC gizmo?