I recently posted a couple pictures of my daughters Q-Dog heifer. We have been feeding Purina Fitters Edge to it every since we bought it. Just recently started to add Full Tank to the feed because she needs more volume and I don't want to get her fat. In an effort not to burn out the calf I think it would be a good idea to keep feeding Fitters Edge instead of a finisher and add a top dressing for a while since she doesn't have an ounce of fat on her. Purina has one called Power Fuel. It is 31% fat and 12% protein. Is this a good product to use or would I be better off using something else as a top dressing like Rice Bran, change from fitters edge to finishing touch, etc? I will be monitoring her very closely so she doesn't get too fat and hurt her chances to becoming a good cow.