He has stated in interviews before that he would have the neck all the way up, and the bridge rolled back to about 20% for some songs. What is and What Should Never Be is a great example of this!Yes, I know it's an old thread.
Of course knobs could move (his or mine), but according to the knobs on my American Pro (I), with the pickups vertical, 0% is straight down and 100% (on the neck pickup volume knob) points to the nearest pickguard screw. So the settings in that screenshot look like neck 50% and bridge about 20% (% of knob rotation).