Analog has always been more ritual intensive. Setting the VTA should be a one time thing once the cartridge is installed and the spacers are a good solution because it addresses Rega's over-riding concern about rigidity.
On the other hand, if you happen to like how a particular Rega cartridge sounds, VTA is not an issue at all.
On the other hand, if you happen to like how a particular Rega cartridge sounds, VTA is not an issue at all.