OK, so before I actually upgrade my two Mac Pro 3,1 machines:
Last time when it was time to do 10.13.5, the Mac Store updater would freeze part way through when it ran into trouble with the recovery partition (though it wasn't necessary for the main OS). The workaround was to either reboot and deal with it or to install from a USB stick with a complete 10.13.5 installer. I did this twice and got around the recovery partition error but there are a few issues post boot to deal with (network settings erased, machine name set to default, sharing points eliminated and had to be reconfigured).
So for 10.13.6, do we have to do the whole USB installer stick again in order to avoid all trouble or can we just do the Mac App Store installer and be good?