When you’re at 0f (zero frame) advantage and press a button, if the opponent does a super then you in turn can cancel the first frame of the button you pressed in to your own super during their super’s flash. This will stuff (most) wakeup supers.
There are many ways to make yourself at a 0f advantage to make use of this, but Chun is at 0f when you forward throw then dash forward. Very easy, very practical.
There’s tonnes of other ways to set this up, but this is mad easy. Can’t remember which CAs stuff Chun’s, don’t want to go through them all myself either sorry.
Hope this helps someone.