when i put one particular hair on the character and then try to use the sculpt morph on the face the hair tweaks out.
That is actually normal. Any cloth or hair which have Conform enabled (as it should), would try to conform while you are morphing your character.
This sometimes is annoying (specially as you noticed with hair), because CC Conform deforms the mesh and breaks the smoothness creating sharp edges.
So while making a minor face morphs tweaks you may temporary disable Conform for the hair.
However if you are making a major tweaks (like for scalp), or changing overall face shape, hair Conform should be ON.
Otherwise head mesh might go right through the hair creating pocks through.