Without bumpslash, you are better entirely removing 1h cav. 1h cav is so shitty it won't change things much anyway.
If you don't buff charge damage to inflict just as much damage as a bumpslash (killing in one hit 75% of players), then it's nerfing something that doesn't need it.
Anyway, skilled people with nearly ANY weapon can kill 1h cav. A good thrust/right swing will kill the horse before the rider can do anything, and you get one or two free hits. It's plainly their fault if shielders prefer to turtle up against 1h cav.
And please, stop nerfing horse maneuver. Or maybe start nerfing human maneuver down to realistic levels as well. Every inf/ranged and their grandmother can loljump and dodge a cav charging them with the maneuver we have now.