Air Raid Four verticals

From Ace 2x2, Air Raid Four Verticals sends X and Z up the numbers and H and Y up the hashes, stretching the secondary across four deep lanes. The back checks underneath if the safeties stay deep.

Four verticals: Four verticals from 2x2. Four receivers to four landmarks, which divides the field into evenly spaced lanes and forces a deep defender to be wrong somewhere.
Four verticals from 2x2. Four receivers to four landmarks, which divides the field into evenly spaced lanes and forces a deep defender to be wrong somewhere.

The call

PositionResponsibility
QBpre-snap, read the defensive backs and pick a side. Less than seven yards off the man, throw deep. More than seven, throw short.
Xoutside release, then straight up the numbers. Leave room outside for the ball.
Hget down the left hash. This is the seam, and the read that bends against a deep safety.
Yget down the right hash.
Zoutside release, then straight up the numbers.
Fcheckdown if the safeties stay deep.