We were successful in the new trailer!
I spent some time with her in the pasture, which has lots of uneven ground, small ledges and the like. I had her on a lunge line and if she acted silly, we would go around a few times, then try again. Because of the variances in terrain, I could start with little slopes, and work up to larger step offs. It was beneficial to have a variety, so she wouldn't get worked up over repeating the same thing over and over, and we could work on her thinking about what shenwas doing, instead of just reacting.
We then went to next to the trailer, where the step we were working on before is. Started with the two on, two off, then asked her up. Backed her back down as the last hind foot landed and she did great.
Then we went to the trailer. She was uncertain of it, as it is very different than what she has been in before. I let her take a bit of time, doing two feet in and back out. When I finally asked her to load up completely she did, but refused to back out.
I shut her in with the divider ( new to her as well) and left her for a few minutes. Came back and asked her to back up. Nope. Got another lead rope, and had one going around the right side of her neck, the other off the left. Since the trailer is a slant load, I pulled the lead going over the right side of her neck, basically pulling her chin to her shoulder, releasing when she backed up. Got her out just fine.
She has always been good about backing in general, although I have never tried to back her over obstacles before now. I didn't have a second person to help, so had to get a bit creative. Not backing out was not really an option, and she used to do it, so was going to do it again.
We will practice some more.