I currently have a version of this. I have the balanced out of the x88 to the Axe, x88 unbalanced out to the LXII, the Syn and Suhr RL going to the last two Axe inputs 3 and 4. The only issue is I still have to manually re-wire when I want to connect the Syn to LXII. Axe direct to LXII or run the x88 to Axe unbalanced.
Thinking about it more though, I’m probably underestimating my ability to create a MEGA preset within the Axe to get me about 85% there. Just connect two outputs in the Axe, one going to monitors and one to the LXII, and rather than connecting any preamps or gear to the LXII, have everything feed to it from the Axe. Then it’s just a matter of choosing which 3 of the 4 inputs devices I want wired to the Axe inputs 2-4. (Since In1 is an instrument input) Might work, and then when I want to use the RL I can just manually plug it in.
Would just require a preset with 3 input blocks and 2 output blocks, and then using scenes to enable - disable whichever IO I’m using. And thinking even further I could use the FC12 to cycle through the scenes, as well as switch Tube Pre types, Cab/IRs and not be tied to the editor.
Of course that does mean I’m tied to the AxeFx for everything, but I suppose that’s not a terrible thing. (This setup would require a rethink if I added another piece of gear in the future)