Dip, drive, and punch the bar overhead.
Use the leg drive to start the bar, then finish with the shoulders. Only go behind the neck if your mobility allows it.
Launching the bar from your upper back rather than your front delts gives it a dead straight path overhead, no chin to steer around, which is why jerks and presses from behind the neck feel so direct. The legs start the drive, the shoulders take over mid-flight and the triceps assist through the lockout. It earns its spot for overloading the overhead position, provided your shoulders have the mobility to rack the bar back there comfortably.
The bar starts directly under its overhead finishing position, so there is no arcing around your face and the path is dead vertical. Many lifters can handle more weight this way and use it to overload lockout strength.
It is a mobility-gated lift. If you can sit the bar comfortably on your upper traps with an upright torso and press without pain, it is a legitimate tool. If getting into the back rack is already a struggle, stick to pressing from the front until it is not.
The push press adds a quick dip and leg drive that fires the bar off your back, letting you handle heavier loads than the strict version. The legs start the rep, the shoulders and triceps finish it.
