Ok, first I have to ask why you'd want to show a heifer right up to calving....the stress could cause her to calve early and she may get sick on the show road.....Frankly, I don't show them within 6 weeks of calving. I live in Canada, and our last shows are Nov., the first the next year are April at the earliest so it works out..... If I was judging a heifer, I'd ask a due date and go accordingly, but some simmies fall apart just prior to calving, especially if cooking up a big calf. Also, you do NOT want to feed them hard prior to calving, and she may not have show condition without hard feed. JMHO V