I bought 3 Comb-Plan's to use as "dip & dunk". If I have more than 6 sheets to process, I can use one (or both) of the extra racks while the first one is drying. Or, you could use one Combi-Plan and use a container of some kind for the stop & fix. What I like about the 3 Combi-Plan's is they really don't need a lot of solution to fill, plus I connect a hose to the bottom drain on one tank & use it for a water stop bath and film washer.