From my understanding, Wedge Formation is used basically for maneuverability. It will give the Cavalry unit a faster movement than standard box formation. It makes turning slightly left/right faster. Is this correct?
other than this, i could not find anything usefull for it.
If I have a Cavalry Unit in Wedge Formation to charge into an enemy formation, I am sure to have that unit's captain killed.
Is there any Offensive Value of Wedge Formation???