First off, I love this mod! Great work!
Secondly, some things I have found:
If the player tries to use a chair or similar object the player will just sort of get instantly moved to a point right beside the chair. From then on if the player hits the 'use' key without an object that can be interacted with in front of the player, the player will get instantly moved to a point right beside the chair. Moving into another worldspace such as going from outdoors to indoors will fix this, though the player will be stuck for a short while.
The movement bugs have probably already been found, but I would like to list the ones I can remember here for people to reference.
If no weapon is drawn:
Cannot run backwards while in sneak mode.
If a melee weapon is drawn:
Cannot move backward at all in sneak mode.
Cannot strafe directly to the right or left in any mode if sword and shield is drawn.
If a bow is drawn:
Cannot move backward in sneak mode.
The human torso seems to be facing slightly to the left at least when standing still.
The human torso leans forward a bit when moving forward. Looks ok when running.
The hindquarters do not clip, it just passes through objects. Curiously though if one gets shot in the rump with an arrow, the arrow shows up in the right place, lol.
Only the neutral (standing still) power attack works. (since my strafe started working correctly the side power attacks work now too.)
When shooting arrows in first person, the arrow shoots to the left of the crosshairs. Spells cast in first person hit left of the crosshairs too, but not as far off.
Thats all I can think of right now. I will update later if I find anything else.
A couple of requests I have once you have perfected everything else: Would like the female centaur horse body to not have that suggestion of a certain male body part. Also would like to see a version of the centaur that has a full sized horse body. I know I could use the 'setscale' command to do that, but if I do the human portion of the body will get bigger too.