This is the first time that I’ve put the pedestal near the trailer and asked Atticus to back onto the pedestal there. Then I asked him to back onto the trailer itself. This happened within about 4 minutes of starting the session.
When he first saw the trailer, he self loaded onto it. Then when I first was asking him to back onto the pedestal, he tried a couple of times, looked at the trailer, turned around, and self loaded again.