RE: What are the next best commands?
Every dog is different. If your dog has been conditioned and is comfortable with a regular collar and has been taught to lead somewhat then yes it is ok know matter what age your dog is. However, do not use the choke lead for anything other that training. If your tie you dog to a stationary without supervision and the dog is spooked or freaks out because of the pressure on the neck he/she could choke to death. Most dogs when eased into it react very well to the choke collar. Once my dog was heeling well I introduced the e-collar to back up the heel command. With a long walk every day for a couple weeks you should have you dog heeling with ease.