Bumping this because the wave toggle and mix control are super rad, but it’s absolutely ugly as sin. Also, the Byzantium is rad but doesn’t have room for an intelligent relay board, and flange is probably the effect where momentary switching modes are the most useful, so integrated relay bypass (much like the VIIB) would be very worthwhile
assuming this is an adaptation of the BF-2 just as the Julia is a CE-2, this should be doable I would think— despite being stacked boards, the Byzantium isn’t all that crowded on either PCB; a switch to 1/8w resistors, and SMD op amp and bypass μC would free up a lot of space for whatever other components need to be added.