The attached model contains an object process flow for a basicFR to sit between a regular conveyor and a Mass Flow. It looks at the interval between the discrete items leaving the regular conveyor and creates a new generative rate when it detects a change, allowing you to convert a stream of hundreds of items to singular events for the MFC as needed and capitalize on the advantages of MFCs. It's a simple process flow:
To use just connect a BasicFR between the two conveyors and add it to the object process flow as a member instance.
This is a proof of concept and does not currently handle accumulation across the interface, or aggregation from multiple discrete conveyors.