Haven't been too active lately. I personally think a few of the non-horseback arrows can be increased by like 2 ammo, maybe 3. Leave the others low so that HA are forced to have limited max damage per round. They were likely made low since melee wpf is now provided for free to all builds based on WM. With 10v10 to 15v15, 20-28 ammo seems reasonable. It's pretty sad, but limited ammo really stops a lot of cheese tactics from forming.
Gotta clear up some misinformation:
-You pretty much get like 20 wpf worth of accuracy per PD. It used to just be -14 wpf per PD and was actually reduced for high PD as time went on.
-1h cav was rebuffed a bit. The nerfed period is when bumpslashes dealt 50% damage. Now it should be 75%. Combined with increased cut on the best 1h cav weapons and buffs to horses, it should be manageable now. You're right that 1h cav should destroy kiting ranged.
-Archers have been made to be much slower with the bow out, and faster with it sheathed. Good acceleration, but poor max speed due to adding weapon lengths to bows. To increase the effect, the weapon length can be increased. PD hurting athletics will mostly affect acceleration, not max speed. Max speed is based more on armor weight and weapon weight & length.
-You can equip board shields and the viking round table without shield skill.