We’ve discussed this at length, I think there is an oddity in the LS2 where it mutes on the return so you’d potentially end up with signal to both outputs doing it this way.
There was definitely a Bright Onion box to make this easier, or just having the Fishman Platinum Pro on double bass and not needing the switcher at all (you lose volume pedal on double bass)
At this point though @Higgie is just going to say it works and it’s wired up and I can’t change it 😂
For anyone else needing to do this the Grace Design Felix is the only all in 1 unit I could find that would do this. It would also give you the flexibility to run 1 output for both basses if you needed to.
Long term this is still my recommendation to @Higgie if more and more gigs are doubled.