The live ring should be attached to the portion of chain that goes over the top of the dogs neck. If you get caught doing it wrong you better watch out or your instructor will have your butt. Did you just start the school? This used to get taught in the first week right after buckets.

To be honest, you probably won't be able to fix your dog's problem with pulling. The instructors are required to keep a strict training schedule and you will only be left to your own devices in between bite work sessions. During the down time from bite work, your dog will need to relax to cool down from the Texas heat. If this is a "pool" dog, chances are he'll be like this for the rest of his life. Most of the "pool" dogs have some sort of problem that keeps them from going to the field. If it's a "green" dog, he'll be cleaned up by one of the instructors before he certifies to go to the field.

To answer your question though, it depends on the type of instructor you have. If you have an old-school instructor that still teaches obedience through escape training and compulsion, the correct method is to put the dog on a choke chain and when he starts to get ahead you just turn around and head the other way. The dog will give itself a correction and most dogs will start to figure it out after a short time. If you have one of the newer-school instructors that is using the bite roll for motivational obedience training, you can teach them to heal the same way it's seen in the Building Drive, Grip, and Focus video.

Buy your dog a prong collar. Read the article on this site on how to properly fit it. It's like power steering for dogs. <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />