a materials handling system includes a feeder station having a plurality of material feeders and an insertion subsystem . each of the plurality of feeders are connected to a common material transport path . a first material transport path is connected to the common material transport path and to the insertion subsystem . a second material transport path is connected to the common material transport path and to the insertion subsystem . a third material transport path is connected to the first material transport path and to said insertion subsystem . the second material transport path may include a materials processing subsystem such as a folder subsystem . the common materials transport may include a pre - fold accumulator transport having a pre - fold accumulator gate . a first diverter may be provided to selectively divert materials being transported by the pre - fold accumulator transport to the first or to the second material transport . a second diverter may also be provided to selectively divert materials traveling along the first materials transport to the third material transport .