I've used one in the past when I was riding a TB/Welsh pony mix who wasn't clipped during the winter. He looked like a wooly mammoth beast by January, and once shedding started I would be covered head to toe in the hair.
The vacuum worked wonders, and he didn't even flinch, even though he was a fidgety type. I think in fact he kind of enjoyed it. If you could find a way to rent, lease or borrow one, I would be happy to share the expense of it with you to see if our primadonna horses would allow such a device to be placed against their ever so delicate bod's.
