Sorry, it’s a long, detailed post. TLDR: I think I may have borked my BlueSCSI?
The Macs:
1) Mac Classic, 4MB RAM, running OS 7.1.
2) PowerMac G4/400 AGP, with a Sonnet Encore 1.2 GHz CPU upgrade, PCI Grappler SCSI card, 64 GB RAM, running OS 9.2.
3) 2020 iMac, for all the SD card formatting...