Attached are some images. 1) the old fence posts go away. 2) The Tool. 3) In the hole. 4) Get rid of dirt. 5) In goes the casing. 6) Casing down in the hole. 7) Back fill around casing. 8) Formed and ready for pole.
Suspect they will be done at End X shortly. The drill machine won't move until Wednesday morning as it needs a low-boy trailer that is elsewhere for now.
The caisson holes at EndY will be worked on this afternoon. The drilling at EndY while deeper should have little problem finishing Wednesday unless down-hole condition are quite different from EndX.