I guess if she is breeding back ok then there really is no problem. Its been my experience that it takes longer and longer for cows like that to breed back though. I sent a cow like that to the barn last year and she brought 27 cents and weighed around 750lbs. That is a beating. This year sent a similiar cow with a dink calf that wasn't growing to the sale and they sold as a pair for $600. I know that is bad but it could have been much worse. My point is if she is breeding back and raising big calves, even if she only lasts a few years its probably better than $300 for kill at the barn.
Walt
Walt