From Tome of Battle:"If at the end of your turn, you cannot be granted a maneuver because you have no withheld maneuvers remaining, you recover all expanded maneuvers,
and a new pair of readied maneuvers is granted to you. Randomly determine which of your maneuvers are granted and which are withheld. At the end of your next turn, a withheld maneuver is granted to you, and the whole process of divine inspiration begins again.
You begin an encounter with an additional granted maneuver at 10th level (bringing your total to three), and again at 20th level (bringing your total to four)."
Assuming pair always means 2. Never does it say you gain more than a "new pair" (Except under the feat Extra Granted Maneuver).
Now read the feat Extra Granted Maneuver. Now finally read Maneuvers Readied from page 96.
Am I mistaken when I say that a 20th level crusader is granted 4 maneuvers at the beginning of battle then when he recovers all of them he is only dealt a pair that he can use?