[just another ref]

I use the pocket whistle to keep up with the arrow only when there is a person who is obviously new and/or not doing a competent job of it. I've never done it at the varsity level.

Here's my question for those who do keep the arrow, whether it's with a whistle, or just in your head. What happens if the arrow points one way, you disagree, and the conflict cannot be resolved? This is listed as the timer's responsibility, not the officials, isn't it?

The norm around here is for the timer to work the arrow, and the scorer to also keep it in the book, and they check with each other. At some point don't you just have to trust your whole crew?