OL "Check with me" & DL jumping

[mbyron]

Originally Posted by Sonofanump

It all comes down to this. If they are doing it all game and all of sudden the defense jumps, you have a foul on B.

I disagree. Your principle would give the offense and unfair advantage, for example when it was 4th and 3, and they did their check a little louder and quicker in order to cause encroachment.

No, the covering officials must judge each time whether the offense is simulating the start of the play. That's the same, consistent principle that applies to "hard counts" and QB head bobs.