A method of operating a filling apparatus for filling bags includes providing a fill hopper having a discharge opening, and positioning each bag to be filled beneath the discharge opening. To promote efficient operation, each bag is positioned in a stand-by position after one of a pair of bag openers, which open each bag, has been moved a sufficient distance from the previous bag to provide clearance in the stand-by position. The cycle time for positioning, opening, and filling each bag is desirably decreased for promoting efficient operation of the filling apparatus.