I've just added the main schematic to the 'Files' section. Also a couple of new pics from last year. I hit a bit of a block and got a little frustrated with my lack of progress. I thought it better to leave the project alone for a while rather than getting so frustrated that I never wanted to see it again! :-) Recently, my interest has been re-awakened but I haven't the spare time at the moment to continue development. Hopefully, when my current (non-electronic) projects are complete, I can revisit ZAViouR nad get it working. In the meantime, feel free to point out any mistakes I may have made in the circuit, any improvements you would make or any other comments. All are welcome.