5.25 Question

[FORDE@UV6.EGLIN.AF.MIL]

Can anyone tell me if the standard 5.25 drives sold for the //GS (since the
time ROM 3 was released) are 'Unidisks' or simply repackaged dumb 5.25
drives? 

My daughter has an Apple //GS ROM 3 machine with two Apple 3.5 drives and
one Apple 5.25 drive.  My son has an Apple //e with one 5.25 drive (bought
in 1984) and one 3.5 Unidisk.  Presently, my son has the Unidisk
controller in slot 7 and the 5.25 controller in slot 6.  He wants to swap
those to allow booting from Apple Pascal 3.5 disks.  UNfortunately, putting
the 5.25 controller in slot 7 means he always must have a boot disk in
that drive or else the //e wanders off into LA-LA land while it waits for
something to come from that slot.  I understand very well why that is (so
why am I wasting bandwidth?) my question really has to do with the 5.25
drive on my daughter's machine and whether I could swap drives between the
two computers and solve the problem that way. 

The //GS Smartport will recognize the dumb drive's lack of communication
and continue through its scan for a boot disk.  I believe the 5.25 Unidisks
are themselves 'smart' and provide the same capability when mounted on a
//e. I would verify this myself but my son's computer is in Florida, my
daughter's is in Kentucky and I'm in Ohio.  Any help from you folks would
be greatly appreciated. 

Eric S. Ford forde@uvg.eglin.af.mil