 So in today's video, one of the things we want to be thinking about is recently when I train a lot of young throwers, what they're going to do is balance points start to come off. So again, remember what we talked about in the throwing chain reaction system is that how we set up that start. We talked about this in the video where we're staying center and how we're walking through our progressions and how we want to be nice and controlled. But that means when we start to throw, what happens is one of the reasons why upper body speed becomes too much of an issue is that when an athlete is falling into the throw, the counterbalance is to open the arm the wrong way too fast. And we talked about the entry arm in one of our recent YouTube videos. And so you might want to take a peek at that. But the point is, is when you're off balance, that can create upper body speed because if I'm falling, right, I'm going to be doing this thing. And so if I fall here, then I'm going to be falling here. So I'm going to open too soon. And this is another thing that also leads to sector files.