I dont like open heifers past 15-16 months old. I figure they didnt breed and they are being sold. I like young heifers so I can breed to my bulls from day one. Not the biggest money maker but after the second calf I am confident in the animal I have and when I sell I dont lie. Bred heifers for me, no way. Had a local guy that had all of his bred, first one came out so big, had to pull it, so big that it paralyzed the cow. He then ran all his girls to the sale, bred!!!. Poor guy who bought those must have got a work out during calving time. I just like things as sure of a bet as possible. That being said I dont want to pay too much for an unproven heifer, after I produce 2 calves with her, I market her up as a premium pair or keep her as a producer.