Here is a slow motion of Wiggins from a better angle. In the video watch very carefully at the front knee. You will see it kind of jolt and then come upwards. That is the precise moment of brace impact. At that moment, where is the disc? It's pulled in to his abdomen in the power pocket position. Now, at that same moment, look at his hips. They have already substantially rotated. Now, look at the hip and shoulder separation at that moment. His hips are already coming open and his shoulders have just started to rotate. This is that twisting load Im speaking of and it jas to be present at strong brace. The hips have to have already started to rotate at that point.
https://i.makeagif.com/media/10-09-2020/j3R94c.gif

The point here isn’t when the hips rotate, where the arm is, etc etc
The point here is this.
The hip doesn’t just *rotate*
If it did, then there would be no point in planting perpendicular to the target, because that inhibits rotation of the hips.
Power does not come from the hips rotating. It comes from the weight of your butt down, mostly from the trail leg. Like pulling down a post.
Take it from me-I can throw 450 with terrible form. Got it videoed, wheeled off, etc etc.
It’s wrong form.
I’m coming over the top and not bracing properly.
Imagine you’re pulling down a post that’s directly in line with, in your case, your left arm that’s out in front of you. Now try and pull that post straight back on one leg with your arm. When you feel it through your heel and you’re using your butt and leg to pull, that’s the feel.
Now imagine instead of a post that’s a disc in your hand. Your back muscle pull the disc to your left as your arm swings out, and your trail leg”pulls” the disc, just like you pulling the post.
That’s the effortless feeling.
That’s the feeling of an effortless shot.
The arm simply acts to keep tension on and aim the disc, but it’s a pull-just like pulling a post out of the ground.
You can’t get much of any force pulling a post out of the ground by Simply spinning your hips without leveraging your trail side against the post.

Okay one more time. You are missing the point. Torso does not rotate. Shoulders do not rotate get it ? They rotate because they move on top of your pelvis.

https://www.youtube.com/watch?v=Od9dI5Wrkfo

The disc is ejected because you are converting torque, or rotational Force, and transfering out through the arm lever into a straight line. That torque, or twisting force is generated from the legs up. The torque or twist creates a lag as the hips rotate first and the shoulders are behind.

The brace helps facilitate rotation. But the brace isn't what initiates rotation.

Hips rotate shoulders just like biceps lift your forearm. So there is no hips rotate first and then the shoulders rotate. There is just hips rotate shoulders. So to say shoulders rotate first is like saying my forearm lifts up and then my bicep follows.

Let me say it a different way- in the throw, the degree angle of the hip in relation to the angle of the shoulders is different. The hips turn and the shoulders lag behind. You do know what hip to shoulder separation is don't you? Here
https://www.stack.com/a/hip-and-shou...throwing%20arm.

Pfff bit different when you pitch versus backhand. See how everything is unwinding together front hip and shoulders in sync. https://youtu.be/RkPwHUVInes?t=15

His hip is not one bit ahead of his shoulders because hips rotate shoulders.

Watch carefully. His hips start to rotate just before his shoulders.

https://i.makeagif.com/media/10-09-2020/c2z9u5.gif

I am not sure how many times do I need to say this, hips rotate shoulders.