There is no documentation needed, as the non-authoritative DC restore process is fully (100%) automated. I am not sure what are you doing and what settings are you looking at and changing, but again, you do not have to be performing any manual steps at all. After being powered on for the first time, the restored VM will boot in safe mode once (the very first boot), perform VSS restore, and then reboot immediately. Until this point, everything is fully automated. After that reboot, the VM will boot up normally, and the restore process is done. All the following reboots (those initiated by user) will be normal as well.
We had automatic DC recovery functionality in the product for 3 years now, it is very polished by now, if it had bugs with it, someone of 25000 customers would have certainly run into them by now. Of course, there might be some environment-specific issue in your case, so if you think that something is not working as it should, feel free to open a support case, and our support stuff will troubleshoot this for you.