I have a may 1st, bull (soon to be steer) calf that I am planning on taking to the freezer. Right now he is taking in #18 of a mix of sweet feed, corn, little soy bean meal, #1.5 of cake, and oats, with free choice hay. Should I just switch him over to straight corn gradually, along with the hay, or keep upping the present feed mix? Never raised my own freezer beef, so suggestions appreciated.