Cavalry wedge : How best to use it ?

[sableblack]

i think it is supposed to achieve 2 aims.
1stly disrupt enemy units for your follow up troops to take advantage of.
2ndly it transports your cavalry through the enemy lines. you then keep going about face and charge the enemy in the rear.
disrupt, follow up troops charge, charge in rear= rout.

[rosscoliosis]

I've pretty much only used it when my settlements are besieged. I send out my cavalry in wedge formation at a full run to smash into artillery crews, and units carrying ladders or rams, (a little harder with the ones pushing siege towers, but it can still work). Of course, the most important is artillery crews. Obviously most of the time your cavalry will eventually end up routing back into the settlement, but it makes it a lot easier to defend if your enemy no longer has artillery to knock down your walls and towers at his leisure. ;-)