This is our No Worries calf we have. He is out of a Vegas cow and was around 80-85lbs, big bone, tons of hair, sound and has the best disposition ever. His color pattern surprised me. Defiantly will be using No Worries again this year. This first pic is when he was a week old, second pic he was almost 3 months and the last pic was 4 1/2 months and only weaned for 2 weeks. He has grown a lot since then. I don't know how everyone else NW calves are but, this one some frame size to him so I think he would be fine to use on your smaller frame cows.