Increasing cow size has a point of diminishing returns, but to what extent is still questionable. It is not uncommon to find herds in the northern climates with cows weighing in excess of 1800 pounds and herds in the southern climates with cows weighing in excess of 1500 pounds. In addition, this physiological change has had a direct impact on heifers that are retained for replacements out of these larger cows. We are learning that selection for RFI will not predict mature BW. In addition, bigger cows are not necessarily less efficient. We also learned that there is a positive relationship not only with RFI value during development and DMI as a mature cow, but also dam mature BW and offspring DMI during development. With the high cost of production in today’s economy, producers cannot afford to just feed cows. In today’s economic environment arguably the most valuable piece of equipment on a cow/calf operation is a good set of scales. Before you decide whether I should keep or sell my bigger cows,