Went over to Chumash by this route after summiting Bishop Peak. This is the best route description.
When we got to the top we were buzzed by a hawk who seemed unhappy with our being there. There may have been a nest on the cliffs below so we made a speedy retreat.
Parked at the Patricia Drive trailhead which is a bit closer.
Summited but didn't stay long due to the sound of gunshots I heard that seemed to be getting closer.