Hi colin
I appreciate what you are saying.
I have never ridden in races, far too chicken, but I have hunted with hounds and I can tell you, the horses are sooooo up for it, it really is very hard to hold them back. They will fly with the herd but obviously it sometimes depends on the gameness of the horse you are riding and also the gameness of yourself. Some horses will go and jump and go and jump and no matter what bit you have in its mouth and no matter how competent a horseman or woman you are, it is bloody hard to stop them so I would imagine hurdling is exactly the same. They love it.
The fences over the national circuit are soft now. If a horse hits it, it bends or the horse simply goes through it, whereas years ago the fences were solid and yes, injuries were extreme.
Lisa