I tend to use prongs to give direction for negative reinforcement then layer over with e collar and then get rid of the prong. Once the dog knows the behavior it's just a matter of some practice to make sure the dog has it and then the e collar gets used as a punisher. I don't need it though I've gone from prong straight to naked training where the punisher or negative reinforcement is my body. I call it handtronics. It's like tritronics but cheaper. I like to mix it up.