On the Pro, the software sees a fairly traditional CSR set with disk address registers (sector and track). So an assumption like the one you worry about would be in the controller, not the OS. If it works at all then that would say the controller doesn't make that assumption.
Yup, things just seem to work. I even was able to boot the diagnostics disk from virtual floppy, you just have to remember which Gotek is DZ1: and which is DZ2: and wait a few seconds after switching for the Gotek's to "settle down" when swapping images.
But it works, my DECNA passes all diagnostics, and it looks like it also passes the loopback tests for DECNET 3.2.
Now to figure out how the TMS software works.... :-) CZ
