I'm new here so I apologize if many people have posted this topic before, but I've had one major mechanincal flaw my whole career and its giving me trouble again: dropping my arm angle.
I can promise its not from fatigue or injury, but every once in a while I get into the habit of pushing the ball, letting my elbow drop in line with or below my shoulder when it should come above it.
Obviously, this is one of the worst mechanical flaws a pitcher can have, because it decreases velocity, flattens out secondary pitches, and makes your command worse by turning you into a dart thrower.
I find that when my stride is very short like when I'm just playing catch my arm angle is easy to control, but when I get into my normal stride (a little less than 6 feet, I'm 6'1" tall), my arm tends to drop. It's harder to put my arm through that higher range of motion when I stretch my lower body out more for some reason.
Is it strickly a shoulder flexibility issue? How can I test for adequate shoulder flexibility for a pitcher?
Are there any mental cues that can help with this problem, maybe such as pulling your glove down and in more/earlier, etc?
Thanks for your help.