Bonny is progressing. She heavily favors the away flank, in fact will hardly take a come by flank, so I spent some time trying to encourage her to go to the come by side. Mostly that involved trying to block her from going on the away flank and trying to follow her round the sheep moved in the come by direction.
As you can see from the video below, I had limited success, and I wound up sprawled against the fence at one point.
But Bonny seems to have a nice feel for her sheep and is thoughtful.