no matter how heavy cav you will have they wont charge enemy archers that are aware, they dont work like that. they are more concerned about the horse HP than their own HP. 1 arrow = loose HP.
"no can do, must turn around and wait for backstab with my zillion armorpoints horse"
and, in my optic, the counter to range is shield, not cav. in crpg, cav counters everything but HA/HX (remove ranged cav from the mod) since they are only backstabbing and not charging as they should IMO. im dreaming of crpg cav that know how to teamwork and move in formation and charge as one into bunch of infantry, completely disregarding their HP. awesome. backstabbing cav = easy noob-mode.