Segmental Cervical Traction?
I would disagree with the PT's response. Stretching the entire neck should focus on the tightest area, not the weakest. But, yes, the occipital hold would be correct. Gentle traction should free up the tight areas. Guide your patient into feeling the cervical area in question. See if she/he can look inside at that restriction and have them let you know when you've encountered that area. Gently traction and go with it.