So far, they work nicely.  I burned both Servant and Superchip into
single 27C512 EPROM and switched A15 to change between them.  They
both seem to be menu driven at bootup via the F Keys, but lose most
functionality after entering BASIC.  I gotta find the docs to see
exactly how to use them, but most stuff is pretty self-explanatory.

Lots of neat disk utilities between them.  I'll put Basic-8 on another
chip and try it next.  

-Jack-

Here's my little kludge to put both ROMs on a single chip (27C512). I
simply soldered a 5K resistor directly across pins 1 and 28, and also
wires from a switch soldered to pins 1 and 13.  I bent pin 1 up so
that it would not go into the socket and thus could be used with a
switch.  Quick and dirty. ;-)

 S1:     
 On = Servant
 Off= Superchip

Note: Pin 1 (A15) is bent so that it does not go into the socket.
Resistor and wires for switch are soldered directly to the IC pins.

    ____________/\/\/\_ 5K Ohm
   |         |         |
   |         |         |
   |       (1)A15  Vcc(28)
   o          
   \  S1      -27C512-
    o 
    |       
    |      (13)Vss
    |________|