We pretty much only measure when it is critical in the game or the possession. And it does not slow the game down. Teams slow the game down with their play selection. The pace of the game is set mostly by the teams and maybe the Referee and the crew getting the ball back to the spot, which we have done very well. I just do not get this attitude of measurements. What are you going to add 10 minutes to the game and that is a bad thing if you did? To me this is like basketball officials that complain about the number of fouls they have to call rather than worrying about more pressing issues, like preventing things that could escalate into things like a fight, but we saved 10 minutes.
Peace