[Ref in PA]

When I am the "R" on the crew, I have each coach review the book for their team to make sure the line-up supplied to the scorer got into the book correctly. It prevents on average 2 book technicals a year in my experience. The coaches who have never looked at the book before seem puzzled why I would have them review it, but the lightbulb turns on quickly and most all of them are appreciative for the review - especially when that occasional mistake has been revealed.