Kept a Critical Mass heifer. 128# bw. Bred her to a bet the ranch calving ease Red Angus bull. Had to use my Ford Ranger to get the calf out dead of course. She ended up taking a twin I had and guess what happened the next year!!!! DOA calf again being bred calving ease also that time.
Had a 112# Simmental x Shorthorn heifer this year. Soon as I weighed her she went on the sale barn list, NEVER AGAIN!