Thanks Hinderella! It’s good to know. And since my position tends to be behind (when I have position faults, that’s where I go) rather than ahead, tipping occasionally might not be a bad thing 
I’m getting over a lot of my fear of coming off…now almost 3 years after my accidents…but man has that been slow progress. I kept thinking that what I really needed was a fall that didn’t hurt, and yet, I really don’t think I was ready until now to deal with that.
When my gelding was dancing around like a looney-toon, and I was alone, in the new indoor…a year ago I would have given up and gone back into the barn. Or gotten on and walked 4 steps and jumped off. Or maybe not walked at all, just mounted and got off.
Then I would have sobbed for a few hours in the barn. Which is what I did in the first year after my fall.
This time, I got on, didn’t clutch at him even though he felt boingy, managed to walk around peacefully even though he was boogey-eyeing around the ring. I’ve built up a lot of trust in this horse, and even if he is “just a horse”, I realized that not only would he not purposefully try to buck me off/lose me (unlike the last 3 critters that I’ve owned), but that if by chance he did lose me, he’d try to dial my phone and call for help if he could.
After all, I’ve foxhunted now…I can do anything
Well…almost. 
Anyway, I do think the vest might make me feel that extra little bit secure in that a fall most likely won’t sideline me for a long time. Logically I know that that is the case and that my accidents were both freak, and that most falls are not bad, and that I WILL fall so long as I ride…but…convincing my lizard brain of such happenings is not an easy thing!!! Just gotta keep plugging away.
Hope you and your super-pony are well!!!