If horse was that stressed, I wouldn't re-scope. I would discuss doing the last two jabs as a "just in case" and take the improvement in behaviour as a sign that the treatment has worked and only go for another scope if the symptoms recur in the future.
I had our oldie's teeth checked a few months back, as she started having trouble eating carrots. He teeth are good for her age, so we think it's more likely to be a TMJ issue and biting down on tougher food is hard for her.
Have you thought about putting the haylage through a chaff cutter to...
https://fagerbits.com/uk/product/mary-titanium-bradoon-fixed-rings?sizeX=0&sizeY=0
I have this on my pony, as she has very little room in her mouth and this fits her really nicely. It is very light and smooth. Fager also have a really useful bit questionnaire on their website.
I've just got a new Arena wide with the HART system. Only ridden in it the once so far, but it is a good fit on a very square pony and I can swap the gullet plates over when she has muscled up a bit in the spring.
I wouldn't go to the yard, as sometimes the thieves are armed, but I would get on the intercom and tell them to clear off before the Police arrive. I would also make sure that the cameras are pointing right at them to get as good an image as possible.
If you haven't already, make sure all your...
Look, if you have done something to deliberately cause unnecessary pain and distress to a horse, it's not a mistake, you have done it before and you have been exposed doing it, it doesn't matter one bit if someone somewhere has done something worse. If you hadn't been exposed, would you still...