I have to agree with Nightingale in that by its very definition, Rage implies loss of control. I believe rage in any sense is a disadvantage.
"Turn into a doll made of wood: it has no ego, it thinks nothing, it is not grasping or sticky. Let the body and limbs work theselves out in accordance with the discipline they have undergone.
If nothing within you stays rigid, outward things will disclose themselves. Moving, be like water. Still, be like a mirror. Respond like and echo.
The localization of the mind means its freezing. When it ceases to flow freely as it is needed, it is no more the mind in it suchness.
The perfect way is only difficult for those who pick and choose. Do not like, do not dislike; all will then be clear. Make a hairbreadth difference and heaven and earth are set apart; if you want the truth to stand clear before you, never be for or against. The struggle between "for" and "against" is the mind's worst disease.
Give up thinking as though not giving it up. Observe techniques as though not observing.
Eliminate "not clear" thinking and function from your root.
-Bruce Lee
I think that pretty much sums up my beliefs on rage. In a fight, emotion is the enemy, emotion causes you to percieve the outcome, to stress a particular technique; this will only cause you to loose if against a skilled fighter. Sure, rage may help you overtake the 6 year old kid who called you a doodiehead, but a true fighter will capitolize on your "rage" or emotion in any form.
7sm