This section breaks down the mechanism for yield savings on a fixed arbor random width setup. Looking first at the images on the left, we are comparing the slat/rip output for two kerfs of 0.110" and 0.094". The concept being with random width applications, some boards will produce extra slats and others won't depending on the board width and the kerfs. 

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This setup proposes an even distribution of board input sizes over an arbitrary period. As seen on the left diagram, we can note that if the input size is between 7.000" and 7.200", the thinner kerf setup outputs and additional slat. This is becuase in this range larger kerf model wastes too much material in the cutting process, leaving the last slat incomplete. For inputs less than 7.000" and more than 7.200", both models produce 11 slats and 12 slats respectively. 

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Again this data is entirely arbitrary and the distributions of board widths depends on the application, however the principle remains the same. Applications with low deviations from the average board width can be easier to increase yield savings, however all situations pose major potential for material and financial savings running premium thin kerf blades.