Still trying to learn my way around this old Macintosh hardware but, as far as I understand, you still have to use the internal floppy drive to boot and the external expander is for a second drive only. Assuming that's correct, I'd like to use something like the BMOW switcher which is advertised as for use with a IIc. Does anyone know if this switcher is compatible with the classic macs other than the IIc? Am I completely wrong and it's in fact possible to boot these from the external floppy without 3rd party hardware?