It's time for another major redesign. There are lots of things happening, but mainly:
- Power supplies are no longer going to be MC34063 based; too noisy and inefficient.
- Changes to the structure of the schematic.
- Addition of digital and signal grounds to lower noise.
- Possible dual board construction: grounding sensitive 4-layer analog board and 2-layer power / control board.
This is going to be R2!