Like the poster above mentioned, running unique master mods all 5 days will be the fullest maximization you can do. If your ally can't handle all 5 master mods, then pick the easiest master mods you feel you can all handle. Start from hardest of the mods you picked, run that on day 1 and move progressively to the easiest. Then switch to heroic and pick the easiest of those depending on how many AQ days are left, again going from hardest to easiest within the heroic mods you chose. Hope that makes sense.