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Two sources of data were analyzed to determine performance differences of cattle with differing degrees of finish within a pen. One source of data was from large-pen commercial feedlots, while the other source of data was from individually fed steers at the University of Nebraska. The results indicate leaner cattle within a pen have lower quality grades and carcass weights, but are gaining faster and more efficiently than their fatter pen-mates at slaughter. Therefore, additional days on feed for the leaner cattle within a pen, in order to increase carcass weight and quality grade, may be economical.