The Nightwatch quest for a 12-slot quiver or ammo pouch is great; however, you are then unable to switch ranged weapon types without losing 4 slots and 1% attack speed when reverting to a non-quested pouch.
Please consider reducing the level requirement for the leatherworker made heavy leather quiver/ammo pouch to 25. This gives us a way to change weapon types without reducing our damage.
You could also enable a repeatable turn-in quest to swap between the quiver/ammo pouch rewards.