Join Date: Aug 2009
Location: New South Wales, Australia
I don't know much about it - I just googled it a bit.
For me the biggest problem would be forcing the horses to do it. Horses are trained to do many unnatural things, as are many other animals. I think if you trained a horse to do it, and it was willing then that would be okay. But I read a few things on people using prods and trap doors and I would be 100% against that. Also, at the larger heights the impact with water would be getting worrisome.
I don't know what injures the horse but my worry would be either fore leg or stomach trouble - depending on location of impact. Water can be very hard when hit from a decent height.