LEt me explain things a little better from my side.
I actually have gotten the symmetry object to successfully mirror the individual hair objects I have on my model.
My problem is that redshift does not seem to recognize the symmetry object UNLESS the base geo is mirrored along with the hair obejcts.
Anyone have any luck with this in redshift?
Below you can see how I have things set up.
First image shows the symmetry object turned OFF. You can see the lashes and brows rendered correctly on the eye on the far right.
Second image shows symmetry object turned ON. You can see the hair splines are correctly mirrored on the face. But neither set of hair objects render.