Pin firing is just like nerve blocks they put in western pleasure horse's tails...To deaden the nerves.
My opinion on pinfiring is that it is INDEED cruel. 16 years ago we were in the racehorse business. Pinfiring was more popular back then and I have seen it done plently of times. The horse is NOT sedated. I have never seen it, but trainers have told me they even use a pitch fork to pin fire with. I don't see how that is not cruel, being stabbed multiple times with red hot rods. That is just my opinion =]