Hi Lantirn,
Try to have a look in the FCTM-Aircraft Systems-Flight Management- ZFW-ZFWCG entry errors.
You will see that for the newer models the speed displayed on the PFD are always from the data inserted from the MCDU even with the « Check GW »message
But like in the older models, V&Prot, V&Max and Vsw are still based on aerodynamic data.