Hi Mike! very interesting idea,
to solve the problem of cables limits , I have automated all the rigs and effects changes song by song via midi. but is very dangerous as everybody know, if the DAW crashes you're screwed
I don't know if it's legal, but I've found that putting a pure boost or an eq with gain in the X slot does a nice job of simulating the boost on my Mesas. If you do make a pedal board, please include a switch for X.
Here is how I set up my GCP: 8/4 Instant Access
A Mod Dly Tune
B C D X
1 2 3 4