Gentle only, stop for pain. No bouncing, nobody pushing a joint, and no forcing the throwing shoulder. General education, not medical advice, and no promises about velocity or injury prevention. Demo videos are third-party YouTube videos; the form shown is theirs. Your setup and check-offs are saved on this device only. Full guide, sources and safety: Mobility & Range of Motion Training · Everything on one calendar: Training Planner app · Arm Care Training.