Soldering the two buttons sounds very interesting and could work for me.
Since my first inquiry I have figured out how to connect the two loopers with midi.

I learned you have to use quantize mode to make it work. I am in the same boat as you and don’t want to use quantize mode while looping live.
Quantize mode is not ideal because I create multiple sections like verse/bridge/chorus and having the count-in gets in the way.

When I connected the two 95000’s together I was hoping the loopers would switch between verse/bridge/chorus. I tried it and the slave 95000 didn’t switch to the next riff. Maybe there is a way to do this?

Do you create multiple sections with your 2 95000’s?

Here’s an example of my set-up.
https://www.youtube.com/watch?v=w2ym-sMwMX8

Another reason I got the second 95000 is I wanted to route my bass and drums signal to their own speakers. That way my first looper can send the guitar signal to its own speaker.

Thanks for getting back to me.
Nate