Years ago we had a driver who was in every day around 4-4:30. When they timestudied the center, we figured that it would be the end of her getting in that early.
As it turned out, all but 2 of the drivers in the center lost time or broke even. She actually gained 1/2 hr. I'm not saying anything inappropriate happened out there, but it sure had everyone wondering.
Time studies would be great if they were done by a third party who has nothing to gain or lose by what they determine. Now, the way things are, I don't know why they bother. The numbers will just be manipulated to project what they want them to be anyway. JMO