[just another ref]

I think (I hope) that all of us at least have a tendency to look to be sure that the arrow is initially set right and that it is switched when it is appropriate to do so. The wild card in this is that occasionally the arrow is switched when it shouldn't have been. "Oh, I thought y'all called a jump ball." If this can be easily sorted out because it happened 30 seconds ago, I'll try to do it. But I'm not gonna use the whistle in the pocket or any other attempt to keep up with the arrow on my own in a varsity game situation. It is, by rule, the responsibility of the scorer to keep the possession arrow, and if we do have a conflict, I see nothing which gives an official the authority to overrule the arrow at the table.