Unless you have a bunch of easy keepers that are chow hounds, then this does not apply. No matter how much people want to tell you it does.
It used to drive me crazy when kids feed and they can not accommodate the difference in flake sizes. They have been told Dobbin gets 3 flakes. When the bale is giving flakes that are only an inch thick Dobbin is not getting enough hay. Dobbin really likes it when the flakes come off and are 9" thick and the feeder girl still gives him 3 flakes.
Glad you are getting your scale out to the barn. There really is no way to know if you are giving enough hay if you are not weighing it.