I took a bit of an informal 3 hour course with someone I know who used to teach it and he had decommisioned models of all the different types to try out (lever/bolt/semi-auto rifles, pump/break shotguns, single and double action revolvers, semi-auto pistol) So I got experience with ACTS/PROVE on all of those. I hear what you're saying, if I hadn't gotten that experience I could see it being alot harder/impossible without the practical experience.