it must be hard to perform autotune, especially with completly random error.
I agree, I hope Blissz doesn't fall into a rabbit hole with this. Boards sometimes throw tons of errors, sometimes work fine. I have one board that doesn't throw much errors but craps out after a few hours if I push it too far. Also the fact that changing settings in one board (for some mysterious reason) affects the other boards. It took me days to understand and tune this thing, I definitely wouldn't try to automate it 
Disclaimer: This is a guess based on earlier bitmain products - electrical distribution. Most manf. seem to be focused on maxing out the chips capabilities so they run everything parallel Bitmain (used to anyway) tend to run serial, Not sure of the specifics of exactly what goes on since you can only get the earliest schematics and I'm mining so I'm not about to take one apart. (yet anyway) Where was I? sorry not enough coffee in me yet. Anyway something about the voltage regulators jiggles things every time you change a setting the board "thinks" they are all supposed to be getting the same juice, so change voltage on one and it jiggles amps which ends up causing the other boards to react. I might be able to put this more clearly after I wake up completely, but by then I will probably forget what I was talking about. Had myself a rough couple of days, and perhaps a smidgen too much scotch. - like I'm aware since you have juice running to each board independently (like you can have separate psu's for each board) then there should be no reason adjusting the volts on one would affect another, but I know that it does, and once upon a time when sleep was in my life I probably remembered why.