A rise in offensive shifts designed to make the defense encroach.

[Rich]

Originally Posted by Tom.OH

It's not a foul unless the defense jumps into the NZ. If they do not jump its just a shift.

Let's look at an example:
A 3 down/4 yards. They snap down hard but they do not draw the defense.
Flag thrown against A.
Coach demands a coach Referee conf to ask what was the penality?
R says your line snapped down.
Coach said they went from a 2 point to a 3 point stance, show me in the rule book where that is a foul. I can see if it drew the other team but all we did was shift.
R - what are you going to say to the coach now?

Hey, I'm with you, but the coach/referee conference isn't going to do anything with a crew that flags this other than cost the coach a timeout.

If the crew says it's a false start, it's a false start.