Start the Vertical stack always in the center regardless of where the disc is.
5 makes a cut deep
As 5 cuts under to get the disc 4 cuts break side under to set up a deep cut into the endzone
As 5 receives the disc 4 is looking to time the cut to reach the openside endzone as 5 is ready to throw it
If 5 does not throw the openside 4 should bounce to the breakside to try and get an overhead throw