Ok, so you are correct, and the way it's spitting the disks out does suggest that it's something about the floppy the 180 doesn't like.

If you can share (I sent you PM) the actual 180 install disk images, I'd really appreciate that.

But I've also taken some steps to make what I have work:

- Gamba's list of systems that do NOT require enablers for his Powerboot75 includes the PB180

- The PB180 requires SystemEnabler 113, which I put on on the Powerboot anyways.

- I can see a System Enabler 113 on the "Install" System 7.1 Pro disk

But yeah, something is bad. Having a real, verified PB180 Floppy Image would be awesome.