I think an interesting topic. First of all the heifer has to be cycling to get bred. If you feed over 4 # grain aday you might as well be feeding 20 cause your belly bugs are screwed up for roughage anyway. I would think most show heifers are getting plenty of groceries. I tried a Kit pharo appoach on my breeding heifers the last 2 years. No grain. I always had a crystalz tub out but they were on cane,cornstalks,grass, and whatever. They went out fairly thin all cycling decent though. This year calved 25 heifers in 30 days. I think pushing heifer development may be overated for ranch cattle. I'm not sure grain grows pelvic region. I may be sorry this year cause this years batch looks fairly tough. I think most show cattle probably need reigned in and not pushed in order to get heifer grown,cycling, and calved out.jmo Enviroments are different and even years are different in same enviroments.jmo good luck with your heifer.