Mechanics and clock situations (Video)

[BillyMac]

Originally Posted by just another ref

... is it okay if the lead changes his own call ... simply because he realizes after the fact that this is the correct call?

Great question just another ref. I'd like to rephrase to be sure I understand the question.

Are you saying, in the simple situation (one whistle, one preliminary signal) of an official giving a preliminary signal (outside any other conflicting signals, or communications with partner), may an official change his mind at any time up to his reporting to the table from the reporting area?

Also, can the preliminary signal by one official be immediately changed to a different preliminary signal by the same official?

Let the games begin.