Possesion arrow indicators for whistles

[Hartsy]

Over the years I have seen and heard many different ways that officials use to keep track of the arrow, and often wonder "why not just look at the table and make sure they switch it?" (or DON'T switch it on the rare occasion when that happens) Secondly, for those of you using the "tricks" to keep arrow, ever have a sitch where the scorebooks and arrow indicate possession one way and you have another? At that point you need to talk to table crew, but if you watch the arrow after the AP throw ins, you can catch any problems when they occur, and BEFORE the next AP opportunity. Less chance for someone to make a big deal out of it.