How old are the dogs? I trash break my hounds with an electric collar. You need to be careful with it though, you can ruin a timid dog with one. As far as the pulling on the lead, put the dog on a long leash and half hitch the lead around the dogs belly, just in front of the back legs. When the dog pulls it will pinch him and he won' t like it. The first few times he will likely roll around and throw a fit, bite the leash, let him do it. Don' t pull on it, let him do the pulling. It won' t take him long to figure it out.