I think any horse owner should be able to do as much for themselves as possible. Some boys are agreeable to this procedure, and some are not without a sedative. Having a vet out the first time seems like a safe plan. He can show the owner just what to do, and what product to use, plus he can sedate the horse if necessary. At the very least it would be good to have a person there who has had experience doing this.
Lucky are the owners with a horse who doesn't mind this.
If you ever find yourself in a fair fight, it's because your tactics suck. ~ Marine 1SGT J. Reifinger