Two-ump question - check swing

[GarthB]

Originally Posted by canadaump6

So the plate umpire in calling the pitch a ball on a check swing, is saying that the batter didn't go around. And his appeal to the base umpire is just that; an attempt to get another opinion on the call, even if he say it perfectly anyways.

EXACTLY!

OBR requires that he check with his partner if the defensive manager or catcher so requests.

And, remember, if he judges that the batter did "go", then he would call a strike and no appeal by the offense is allowed