-The Dither/PowR dither plug in only affects the mono or stereo output of a track or bounced file(s). The insert on a master fader is Post fader.-The Dither Setting in the Preference menu only affects Audio Suite plug ins. As of right now, there have been no other A/S dither programs created to add to pop up menu that contains the "default" dither setting. When the "Use Default Dither" is not selected, then a standard dither is used (no noise shaping).-The Dither on Fades uses a standard Pro Tools dither algorithm.