control thing is also true. even though its getting better every time i pitch I’m still having a hard time getting my stride straight to homeplate. Dont know why
The issue is with your glove hand - when and where you decide to “curl” it.
Notice in the slow motion of your first Youtube shot, you bring your glove down and outside of your stride leg, then curl your glove inward.
The human body is very sensitive to forward motion and the arms and hands are very proactive in the body’s way of dealing with said motion. So, wherever that glove hand stops, then curls, is where that stride foot is going to land.
For example, take your spikes and draw a straight line towards home plate from where your pivot foot is. Stretch out your stride leg, along that line, and move your stride foot back and forth so it leaves a mark. About two (2) feet to the right of that mark, make an “X” with your spikes.
Now go through your motion, but, where the “X” is, stop your glove hand from going any further. Notice how the stride leg plop’s itself down right on the “X”. Now, see where your line is going directly towards home plate - make a “X” to the left of that line … Oh, about eight inches over towards the first base line. Go through your pitching motion again, and this time stop your glove hand at the new mark, and watch how your stride foot turns sideways in addition to your entire body, as it has been doing in the Youtube video.
The placement of your glove arm and your glove hand has a very important impact on the stride leg and its support of your pitching accuracy.
I hope some of this helps you.