While I use the same soap through my five brush rotation or five days in a row, my puck of Haslinger Schafmilch was used up on Sunday. Yesterday a new puck was unwrapped and was used yesterday and today. Tomorrow will start the DR Harris Arlington five day cycle.
For me this five day cycle works well. I’m currently rotating through Haslinger Schafmilch, D R Harris Arlington, Cella, MWF, and Tabac. Enough variety but also enough time with each.