Overtaking on Hazelhatch to Parkwest 4 track.

[m3parkway]

I was just wondering if anyone knows when or if overtaking occurs on this 4 track section between Hazelhatch and Parkwest since the new timetable was introduced. I'm have only seen it happen two times before (but during the previous timetable) and the second time it only happened because the commuter train I was on was running 10 minutes late. I have never known of any over takings heading out of Heuston.