Well, looks like I owe you one !
I had not heard or read about Phazerville before but it does indeed work with my v1 version of O&C 4Robots AND it contains some of the apps of the original firmware - I was so happy when I tried the firmware, I got lost in the test patch and started wiggling filter cut off knobs for an hour.
Thanks, friend, you made my day :-)
--- Voltage control all the things ---
qiemem and TangoDelta