All, I am familiar with Total First Pass Yield in standard situations where item lots travel from station to station, (multiplication of each station's First Pass Yield). However I could really use some help in more unusual situations. How would I handle a situation where one of the initial stations contains a larger item lot that is split among multiple stations? How about if the item lots that travel from station to station are mixed to some extent? Thanks for any ideas on how to handle these situations.