nerancher, Thanks for a great post. I like to leave bulls in until preg check. We cull based on vet preg check. Even a short bred cow is worth $100-$200 more than an open kill cow. Did I understand that you believe your heifers are breeding 80% on that false heat after the MGA and progesterone? What was the issue with reproductive organs that the vet saw? Can't follow the math on the 6% dropout for the first 3years. If 6% of purchased cattle fall out each year, you are losing the difference between buying a cow bred for your calving season and selling a short bred or open cow.This is an important number, but should be compared to the cost of raising a replacement heifer. In smaller herds, which most are, (less than maybe 300 head) this cost is probably in favor of the terminal herd. Would appreciate hearing your responses.Thanks.