Cerwin, my lessons are free to others. I got trained on all this stuff from several Nat'l Champs and other top level shooters.
Besides, I spent 22 years in the US Navy working on, managing folks doing so and conducting training classes in large arms marksmanship; shipboard guns' and guided missiles' controlling and shooting radar-computer systems. They're just like small arms marksmanship with rifles and handguns. Stick to the simple stuff and avoid all the fluff.