Stick

Check pre-snap safety depth, a two high shell tells you the underneath stick and flat combo will have room since corners are playing off. Watch the flat defenders leverage at the snap, aggressive flat drops signal Cover 3 or a sky zone and open the stick window immediately. Man coverage defenders who chase the flat route wide open up an easy stick throw underneath, so identify man versus zone by how the outside corner reacts to the initial release. Blitz heavy fronts with only a single high safety are the biggest threat to this concept since the quick game timing can get disrupted before the stick settles, so have a hot route ready to convert the backside receiver into a quick outlet. Watch for user linebackers sitting in the stick window, a lurking Mike or Sam who reads the quarterback's eyes can jump the stick route and turn it into a pick six if you stare it down too long.