If you use a repack then it *may* have all of them installed already (make sure they're up to date)
If you build your HS2 setup from scratch you need: *Made and tested with DX version, if you're non-DX user and have problem loading the card, then please update your game to DX version first* I decreased the elasticity on front and side hair bones so they don't clip to the face too much in motion but as always you can tweak the values with HS2PE in the studio. Despite being short the hair has a lot of bones, and I had to reduce it by merging redundant ones.