Playbooks

Shotgun Split Wing Nasty is one of the heaviest looks you can run out of the gun, putting 22 personnel on the field (two running backs, two tight ends, one wide receiver) in a compressed alignment built to punish defenses that match with base or big nickel. The split backs flank the quarterback, one tight end sits on the wing, and the nasty split tightens the formation so the lone receiver or second tight end lines up just outside the tackle box. Most Shotgun sets spread the field to create space. This one condenses it, drawing defenders inside and creating extra gaps that an unbalanced front has to account for before the snap.
The Gadget tag fits because nearly every play in the set carries built-in motion. Mtn Read Lead Option, Mtn PA Slide, and Mtn PA Y-Cross shift a back or tight end across the formation, which forces defensive re-leveling and shows you man or zone before the ball is snapped. Motion Read Option and Motion Power O change the run strength at the last second, giving you a numbers advantage at the point of attack when the defense fails to rotate. Motion PA Mesh uses that same threat to sell run action and drag linebackers downhill.
The matchup advantage comes from forcing heavy personnel onto the field. When defenses answer 22 with linebackers and a base front, your tight ends and backs leaking into the flat or crossing on Y-Cross get isolated on slower second level defenders. When they stay in nickel to protect against the pass, the Power O and read option concepts get a lead blocker and a pulling guard into a lighter box. Every snap becomes a pick your poison decision for the defense.
Watch the motion man pre-snap: if a defender follows him across the formation, check to Motion PA Mesh or Mtn PA Y-Cross to attack man with rubs and crossers.
Use Motion Power O on short yardage and in the red zone when the defense is in a nickel or dime look, since your extra blocker and pulling guard create a clean lane between the tackles.
On Mtn Read Lead Option, read the unblocked end: if he crashes inside, keep with the quarterback, and if he stays home on contain, hand off and follow the lead back.
Against heavy blitz looks, hot route a back to a quick flat or slant and slide protection toward the pressure side before running any play action concept.
Mix this set in on early downs after establishing the run, then hit Mtn PA Slide or Mtn PA Y-Cross on second and short when linebackers are cheating downhill to stop the run.