I have used the champions drive only, and have seen GREAT results with it. I have used it on lambs, pigs, and currently on my heifer calf. It is one great muscle builder, and its very palatable. I feed my heifer one full scoop in the morning and one in the evening, as well as she gets fed and tied on a tall incline, we have noticed huge results. This calf really lacked muscle...
What size is your calf? Heifer or steer? Whens show? Got a picture? ;D
The Champions drive has 32% protien, and 5% fat.
While the Power fuel has 5% protien and 31% fat.
Just get some info on the calf, and we can go from there!