We should never be completely fasted. As soon as you're protein starved, you start breaking down muscle. Throw a catabolic activity like cardio on top of that and you're begging to waste away. Fortunately, it's not too difficult to prevent this muscle catabolism, because all we have to do is eat a little protein. When it comes to cardio, eating protein before will preserve muscle tissue without impacting fat loss. Metabolic Drive! is the perfect protein for this, because its slow entry into the blood limits the amount of amino acids that'll be used for energy.
Dave Barr. Like I said I don't think there is gonna be a huge difference in your results either way.