I cannot speak for other angus breeders but my birth weight has drop the last several years on average and wean wights have gone up. The present home raised sire comes from a family line that traditionally has smaller calves that grow extremely well. We still get the occaisonal calf that breaks the 100 lb mark. We have several cow families that have 90 to 110 pound calves on a regular basis with no problems. Every calf is weighed using a scale that is graduated in 2 pound increments. I try to stay in the middle of the road for birth weight. Why take the risk of bringing a new challenge health wise with bulls every year?