Does anyone know how to take advantage of the 7-3 Split Sleeper Berth on an older PeopleNet system. Twice I have been within two hours of home and had to stop. As soon as I go into the Sleeper Berth mode it says I gain time in 7 hours. Then 7 hours comes and it jumps to 10 hours. Is there a way to use the split and if so how?