Playbooks

Not in any team playbook.
RPO Peek Slant out of Shotgun Doubles HB Wk gives the quarterback a run/pass conflict read tied to the backside slant. The two receivers to the strength side run a slant and a flat/out combo while the backside single receiver runs a vertical release, and the HB runs an inside zone track behind the offensive line. This is an RPO built to punish inside linebacker aggression: the primary read is the peek slant, if the linebacker who fits the run crashes downhill, pull the ball and throw the slant window behind him, otherwise hand it off and let the zone scheme work.
Watch the play side linebacker at the snap, if he crashes down to fill the run lane the quarterback will immediately pull and throw the slant behind him. Man coverage on the outside receivers is where this play struggles most, since the slant window closes quickly against tight man technique with no natural rub. Zone shells with a linebacker sitting in the shallow hook zone can bait the quarterback into an early handoff read, only to blow up the play in the backfield. Cover 3 or Cover 4 with soft outside corners gives the offense the cleanest peek slant window since the underneath defender is occupied by the flat route. User the middle linebacker as a lurk defender to jump the slant throw, this is the single most effective way to shut down the RPO read and force the quarterback to hand it off into a stacked box.
Presnap, identify the linebacker depth and alignment over the slant window before the snap, if he is sitting shallow or cheating toward the box that is your green light to throw.
Use this on early downs like 1st and 10 or 2nd and short since defenses expect run fits from Doubles HB Wk personnel and are slower to react to the slant.
Hot route the backside vertical receiver into a deeper post or comeback against teams that key run heavy fronts, this stresses the safety and opens the peek window further.
Pair this play with RPO Zone Peek and RPO Read Bubble in the same set to keep defenders guessing between bubble screens, zone reads, and the slant peek, forcing linebackers to freeze on every snap.
Against user blitzers who key the mesh point, snap the ball quickly and trust the slant read rather than holding for a secondary route, since this play is designed for a fast decision.