I am a music teacher so this sounded interesting to me. Anyone ever heard of, or have any thoughts about practicing defensive shooting with a metronome fed to your ear? Starting at a slow, steady rate so that there is plenty of opportunity to focus on proper mechanics and then gradually increasing the tempo to develop a consistent "cadence" of fire on the target, or maybe across a line of silhouettes. Being able to increase speed in such small, exacting increments while monitoring and maintaining technique seems like it might be an interesting and beneficial exercise. Would love to hear any thoughts or experiences!