If you can believe it, some actually have the audacity to claim the Half Bow is too OP. GoT has some of (if not) the best Bow combat of any game I've played in recent memory. As far as the Half Bow being useless in Act III is concerned, I'm pretty good at sniping people in the exposed facial opening most helmets have. For the rest, I just use the Long Bow. True it's slow, but that's the trade off. Slower draw speed, for increased damage. Fully upgraded you can one-shot captain level enemies. Although as a rule I try not to rely too heavily on Bow combat alone. Melee combat is just too damn satisfying.