The two things lacking at Jervoise (which are currently being remedied) are water infrastructure and crew. In order for cattle to retain the desire to work as a herd, all stress needs to be remove, and this includes the stress of competing for water. No matter how much flow a drinker may have, if cattle numbers are so great they are fighting to get a drink, the cattle will not remain together as a herd. This was a big problem on Jervoise. The second problem was a lack of crew.
A big part of instilling herd instinct is being able to have all of the cattle head out from water to graze in the same direction as a herd. This presented a problem as we seldom had as many as four people to keep track of over three thousand head coming off of water in a timbered area. Despite that fact, the cattle did act as a herd...until we put them in a situation where they were stressed by having to wait in line for a drink. The problems of water and crew are being addressed and the plan is to try it again after the wet season. In the meantime, here is a video showing the basics of getting a large herd of cattle to acting as a single herd.