Open To Close On Knee: Right knee down, left knee up, arms in "L" position. I need to try some of these because I pitch!
Softball Pitching Drills: Drive & Momentum | iSport.com
Essential Softball Pitching Grips
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▶ Softball Pitching Drills for All Ages - YouTube
4 Softball Pitching Drills to Improve Mechanics
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Softball Drills: How to Ensure Your Pitcher is Using Correct Technique : Softball Spot
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Fastpitch Softball Pitching Lesson - Meagen Denny