None of it escapes me, I've graduated that level and am a few books ahead of you.
If you need more than a choke chain then you are doing something wrong or working with the wrong dog.
Can you imagine a bomb dog jerking on a handler like a pit bull does. There would be a big boom and no more handler. There is a problem here. When people see what a good dog, a well trained dog can do without physical restraint and they compare that to your every day pit bull they can't keep the discussion on or about the dogs anymore. The discussion instantly becomes one of personal attack because their dogs will never stack up well against the real thing.
War dogs in the pacific were of many breeds. Some were pits that were trained to pull on the end of a leash and bite what was in front of them. There was no verbal control to these dogs to disengage them the handler had to snake up the leash and choke them off. This was the initial model of the military sentry dog. The military fazed all of that type of dog completely out of their inventory many decades ago because they were not controllable. They were replaced by dogs that had german shepherd characteristics, were at least 23" at the shoulder and weighed at least 60#. These new fully verbally controlled dogs were designated as "Patrol dogs".
A prong collar is not ‘more than’ a choke chain; it’s designed to work more efficiently with gentler stimulation. If you try to choke a dog with a prong collar, it comes apart; the links were not made to hold under extreme stress because they work so well with a light touch.
I’m hesitant to bring my personal dog(trained with a choke chain) into this, as there is no way for me to prove my claims, but I assure you that he does not pull. He walks at my side with a loose leash past cats, dogs, people, food vendors, delicious bits of rabbit poo...He’s dropped squirrels and possums that were seconds from death at a single command; he’s not an attack dog, and I don’t bother teaching him tricks, but he is extremely well behaved. If you can take what I say at face value, please explain to me how I, a rank amateur, can achieve these results with a breed you deem un-trainable?