Ahhhhh. A loose feel to the tightness of the steering feel.................
My car used to do that. Unfortunately I cannot narrow the symptom down to one item I replaced. I rehabbed a number of things when I refreshed my front suspension.
My best guess would be the tie rods of the steering rack. When the rubber bushes in them get old and sloppy, the looseness can be transferred to the rotational feel of the steering wheel while driving.