This is our vert-stack set-up. We're blue. We're being forced forehand.
First, the back of the stack (7) steps into the lane (this is NO MORE THAN THREE STEPS, even though it looks like more on this video).
If the defender is giving up the under, our cutter will go underneath and the new back of the stack will go deep.
The deep cutter will come under, the back of the stack will go deep and we'll keep doing that until we score
This is our vert-stack set-up again.
Sometimes the back-of-the-stack will be forced deep
We can usually just throw this deep.
But sometimes
the cutter will go deep and the handler won't throw.
The cutter can come under (towards the handler), just as if he/she had never gone deep in the first place