Learn to chamber couches. Why?
 - The horsebump-stab/swing combo can't be used, because the couch is too long.
 - Cav coming at you with couch, and you're backed up against the wall? Chamber that lance. The cav will probably hit the wall behind you and rear. Cut him up.
 - When you chamber a very long couch lance, you can sneak in an overhead or a stab. 
Chambering in the first place is satisfying enough.