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Breakdown
Mtn Fork Y-Corner lines up out of Bunch TE in Shotgun with a receiver motioning across from the bunch side to the backfield before the snap, creating a Fork release look for the run action and stressing the defense with a stacked trips alignment. Post snap, the two inside bunch receivers push vertical then break into a corner route and a deep crossing route (red) that clear out the middle, while the outside receiver runs a corner route from depth on the opposite side and the flanker to the boundary runs an in-breaking route. This is a man beater built to create natural picks at the top of the bunch stack, and the primary read progression starts with the Y-corner route out of the bunch, then works to the backside corner if the linebackers or safety jump the underneath crossers.
Defensive Reads
Pre-snap, check the safety alignment over the bunch, a single high safety shaded to the bunch side signals Cover 3 or Cover 1 and tells you the corner routes have a soft spot behind the flat defender. Watch the motion defender, if a linebacker or slot corner mirrors the motion across the formation you are facing man coverage and should expect picks at the top of the bunch stack. Post-snap, key the flat defender's depth, if he sinks with the crosser instead of widening to the corner route you have a clean throwing lane to the Y-corner. Beware of a Cover 4 shell with quarters help, since two deep defenders on the bunch side can rob both corner routes and force you to check down to the underneath breaking route. Look for a user-controlled defender sitting in a lurk spot behind the crossers, that lurk threat can jump the shallow route and undercut your check-down option if you stare it down too long.
Usage Tips
Use the pre-snap motion to identify if the defense is in man or zone, if the defender follows the motion man across the formation you are getting man coverage and the bunch picks will be live.
Attack Cover 3 and Cover 4 shells by throwing the Y-corner route early since the flat defender cannot cover both the corner breaking route and the crosser underneath.
Against Cover 2 or press man, hot route the backside in-breaking route into a quick out or hitch to give yourself a fast rhythm throw if the corner routes are covered late.
Best used on second and medium to third and long where you need a defense to defend multiple levels at once, since the bunch clears space vertically and horizontally.
Pair this call with Mtn TE Corner or Mtn Snag Under from the same set so the defense has to respect both the standard corner concept and the shorter option routes, keeping linebackers honest against the bunch alignment.
