I still have an MB-1.
Haven’t plugged it in or powered it up for a few years. But those things are awesome. I would still rock it if I was in a band where I needed to switch tones a lot.
I remember the “fretless” preset was especially awesome.
If I get bored and have income to dispose, I might try to fund some ADA cabs like the OP and assemble the stack from the 90’s era advertisements. Lol
I used the MB-1 distortion along with a morley wah to cop a Cliff Burton tone ala For Whom the Bell Tolls. I also used the SVT setting quite a bit.