Cooper was a training genius...The El Prez tests....Hearing, Reaction, Movement, Presentation, Press, Reloading, Reacquisition, ALL in one quick Test....it told him how the people he was training [with 6 shot revolvers] had evolved in a week. It still holds up today going on a half century....it only works when it is done with correct distances are used...that is exactly why anybody today that can do one in Under 12 seconds is considered a good man to have around....I still wanna see one under 6....done The Right way...come and get your money!