Thanks to everyone for their lovely support - equine bloggers are seriously the BEST! and reminding me that horses will be horses sometimes - they keep us humble :)
Day 2 of the the Longe Challenge:
Brought Tesla up to the lit arena, and another rider was working her mare, so we did some walk laps to warm up. I heard whip slaps, and thought:
"Yay - another chance to desensitize to strong discipline"
Tesla was a bit looky and had one little jump forward, but then settled down to what I was asking, rather than worrying about the spankins she wasn't getting.
We had a few FAST circles, and a butt tuck and scoot, and then she settled down for some lovely work (and I made a big fuss with praise). Going right she was suuuper sticky, so we went left again and then switched back and it suddenly clicked in her brain and we had some soft walk and trot.
I don't think we're ready to tackle busy mornings quite yet, but we'll come full circle soon enough ;)