Just fired it up with no stir plate running (CPU on bare desk) to see what the log would look like:
That is just noise and on the order of +/- 0.125 not +/- 0.5. I will give the stuff you sent a go on tomorrow to see if I can eliminate some of that. I don't think I am going to resolder the pins, but it isn't too much trouble to solder onto the maxim pcb