I'm a great fan of James' video tutorials (thanks, James!) but the video on exposure bias and the develop assistant settings has me flummoxed - either I am totally missing what these settings are for, or they are not working as they should. James explains that AP does not apply EB (based on the setting in exif) by default - which is where I started to get lost.  After all, the exposure compensation setting causes a "physical" change in the camera settings to achieve the desired result - so