First, I want to thank all you guys for documenting this. We have 7 Late 2013 Mac Pro's in our studios and HDD space was getting tight to say the least. I have been looking for options and I like this one best. I have done all the updates and verifications and all are at boot ROM 127.0.0.0.0. I was getting read to start one but wanted to ask this question first. I bought 7 1TB Samsung M.2 970 EVO Plus NVMe SSDs and their corresponding Sintech adapter. I also bought an external NVMe enclosure to test all the SSD's before sticking them in permanently. Once I got one installed in the small enclosure and attached to the Mac Pro, of course it shows up, can be formatted with any of the available formats from APFS to Journaled, etc. I thought, why not clone my current default SSD to the new NVMe drive, ensure its bootable (by selecting it in System Preferences > Startup Disk), THEN do the hardware upgrade. Is this an option at all? I didn't see any one mention it as an option. I ask because we do have a tremendous amount of software on these systems; some software is HD authorized and others require USB dongles and such. If installing from scratch is the only option, I have to get some weekend downtime for these systems.
Let me know your thoughts on this.
Thanks
Dray @ New Ocean