Apply a basic material structure set to fit your pitching arm, add WiFi, or NFC which may communicate with your smartphone, and you get the perfect pitch.
Wear the PPPt, an erector set like brace, over your throwing arm. Get a coach to slowly walk you through the throw from stance to release.
The PPPt should record the movements, and save to your smartphone and you should uniquely name each throw, e.g. pitch one. The PPPt will playback the motions in whatever speed you choose, n x baseline at the initial slow movements. Then when ready to throw, you can have the PPPt optionally shock you to remind you when to release the ball, a light electric shock. Add pitches, like curves, or slider balls, or whatever.
The brace on playback keeps the arm in formation, and trains your brain to move your muscles in a reactionary format and consistent throw movements. Can be massed produced and sold for under 100 USD.