There are a LOT of schools and instructors out there and lets not forget the interweb, so whats your best tactic/trainer/instruction? Mine was a course I took in 1985 that started my career unfortunately it is no logner available, it was a full decade ahead of its time. The next favorite for me was NRA LEO Firearms Instructor course (44.0 hrs) BTW: My favorite defensive tool: Shotties! It's my favorite to teach as well (the AR would be next) I love the fact that I get to go to the range at least once a week! More would be nice. I used to go to the range almost every day and get paid to do it (6 of my FAVORITE years). Lets see were this takes us.. GO! Respectfully, ORSECTRAIN "Be Safe Out There!"