middle and pan are taken to check the movement of the reference point when turning to the right. Might be he should have moved a little bit further to the overlap area. The nails don't seem move in these example.
For LRS he has focused down to the logo. Would have been better if we could see the focus point from the camera.
RC, you get better results about a "moving reference point" when you check it to something which is far away, like a house etc.