Hulk, if you are a full time seniority driver, you are guaranteed 8hrs work every day before any helper is put on the street. If you are not working and any helpers are. File for all time worked by every helper or your 8hr guarantee whichever is greater.
In the case of not driving and no helpers working you have the right to displace 2 part timers. If they do not allow it, file for your time.