Play starts as pictured. Stack should be as far back in the endzone as possible.
The iso cutter tries to get free for the first 5/6 seconds of the stall count. THE ISO SHOULD NEVER LEAVE THE ENDZONE UNLESS NECESSARY.
If the iso doesn't get open, the handler looks dump. ISO: STOP CUTTING ONCE THE DUMP IS INITIATED. The dump handler now has two dump-cutting options; A) Cut straight to the open side.
Once 1 dumps the disc, they cut straight up the line. Because of how the mark is lined up, they should have the advantage from the get-go and get the easy score.
Option B) If the dump can't get open on the open-side, they cut back to the break-side.
Usually with endzone play, the defense is so worried about stopping the strike, they will usually over-bid on this cut, hopefully leaving the break-side cut open.
Provided the iso hasn't moved, there should be a huge area to aim for on the break-side of the endzone.
Score. If the disc gets recycled so much that the iso has to come out of the endzone to help out, the first in the stack then becomes the iso.