I dont know if Cattlemax adjusts the weaning wt ratio for the sex of the calf or not. I will check that out. I dont have that data with me tonight on the road.  My best ratio was with a steer calf. But my close second was a heifer calf.  if nothing else i should group the heifer calf and steer calf ratios separately.  I hadn't thought of that before. Thank you.
Jim at Dawn