Yes, all is good with Clover so far as I can tell. I typically use F12 to select my boot drive. I was simply surprised that in choosing the clone, that Clover still booted from the legacy drive.
In any case, I'm still having the issues, with the RX 580. I'm seeing the same reboot loop. I get about 3/4 of the way through the boot, and it just reboots quickly. Unlike past issues while booting verbose, there is no freeze frame, so to speak. Usually the process comes to halt and you see the potential errors on screen. This reboot happens midstream with all of the white text flying up across the screen straight into a reboot. Tried pulling my native Airport card, which I've read has been an issue for some, but saw the same issues.
@Stork, if you're watching, any ideas on how to get a readout of a boot log that doesn't fully load like this?