Step 1

Assuming a forehand force: O6 has the disc in the middle of the field. D7, who is guarding the forceside handler "Flexes" by poaching in the lane and leaving O7 open. D7 needs to be almost in front of O6 in order to really influence the throw. D5 plays tight to breakside handler, O5.

Step 2

If O6 swings to O7, D7 now puts on a mark on O7, likely Fire (no dump mark). D6 and D5 play normally.

Step 3

If O7 swings back to the middle of the field, revert back to Flex.

Step 4

If O6 swings to breakside handler O5, now D6 becomes the Flex. Since D5 can play a flatter mark close to the break sideline, D6 can Flex more to the side of O5. D7 pinches in to threaten the throw to O6.

Step 5

D7 must keep an eye on O7. If O7 threatens downfield, then D7 must adjust.

Step 6

If O5 swings back to O6, D7 is Flex again.

Step 7

With a straight-up mark, both sides Flex. Since it is a flat mark and throws around D6 will be wider, D5 and D7 can play more to the sides of O6. Flexing on the sideline with a straight-up mark is the same as step 4.