Softcard: DEVSEL instead of IOSEL possible?

[Linards Ticmanis <ticmanis@gmx.de>]

Has anybody ever tried making the CP/M Softcard use DEVSEL $C0nX instead 
of IOSEL $CnXX for CPU switching, by rerouting that trace? If I 
understand things correctly, this should enable using the card in slot 3 
(the only one free in my crammed IIe) with a patched CP/M. As the 
Softcard doesn't really need ROM space I think this would be easily 
possible.

Of course the "slot scanning" code used to find the card would have to 
go away (rather than merely be modified), as randomly accessing DEVSEL 
space is probably a very bad idea. But the slot 3 location could simply 
be hard-coded into the patched CP/M.

Or am I completely on the wrong track here?
--
Linards Ticmanis