Ahhhh the nav aids. Never really undestood why people put so much stress on it. Talking about A320 family: I see guys deselecting all sort of U/S VORs during cockpit preparation, but unless you are flying a very old model, the FMGC never uses VOR/DME for navigation as long as you have GPS primary. If you pay attention to the progress page you can’t even update the position anymore unless you deselect the GPS or lose them like during alignement. The Take Off Shift also is not used for position computation anymore like the old models so if you take off from runway intersection and leave it blank or put an erroneous value, well no problem as its function is inhibited with GPS Primary. I never deselect or use Rad Nav except for EOSID or if I’m doing a VOR approach. Completely waste of time IMHO.
For those who doubt my words for what I said, I can provide references.