7 minutes ago, Niami said:
would it be better to clone then run mbr2gpt on the new ssd running from the old ssd as I've read that it's not a good idea converting the drive your running os from?
You can do it either way, just keep in mind that you have to be able to boot the drive.
I've not run into any failure conditions with mbr2gpt yet. The main obstacle here would be getting the UEFI bios to boot the right drive, which the easiest way is to remove the previous drive for one boot cycle, and point the UEFI to the drive itself, not the boot manager, once it boots correctly once, put the other drive back in.