[greymule]

Do you allow a runner to keep running to 2nd & 3rd while you are checking with your partner?

I have never even considered stopping a runner who is already in motion. Especially when I am working with long-time partners, I'll point immediately on a checked swing and get a call. But this is hardly a common play. It's different if the runner is not in motion. Then, yes, the ball is dead.

It would be the same if, after a pitch, the catcher asked me the count and I said, "Two and one," and then the runner ran on the throw back to the mound. Or if as PU I couldn't see whether F9 trapped a ball and got help from PU.

I am aware of the case play, and I admit these are HTBT situations, but I don't see how every form of checking with your partner automatically kills the play.