Since they are the Saxon Huscarles, and not the Viking Huscarles your enemies have to pay good money to get them. If you have a good base of operations you can get a decent mercenary army to take through your enemies' lands as economic warfare. Being on the attack against half a stack of Huscarles is easier than being on the defense.
If you see mercenary archers or crossbows buy them and keep them for use as the firing units and retreat them off the field when they are out of ammo. Other mercenaries are meat shields, a good way to cut costs, and if they all die, too bad.

mfberg