One thing I'm curious about, based on that screenshot of the Lisa "PFG" control panel: is the data rate on the Lisa's drive interface slightly different than on the Mac? It talks about initializing the... whatever, at either "15.7mhz" or "16mhz"; I vaguely recall that that the IWM has clock inputs that are nominally either 7mhz or 8mhz depending on whether it's used in an Apple II or a Mac, but the clock signal actually supplied to it in the hardware was more like 7.85mhz. That's less than 5%, and of course the disk controller is supposed to be able to compensate for some degree of disk speed variation, but if the Lisa clocks its controller at a straight 8 mhz is it possible that the data stream coming from the FloppyEmu is just far enough out spec that the Lisa is having trouble locking onto it?
