4/5 Deep Breathing is such a godsend. I've saved myself and others so many times from activating Restoring Breath, then while it's charging useing Deep Breathing. With full Wyvern HP set usually heals a good 700-800. Times in abyssea lowman stuff where we couldn't find a healer so I came as a DRG healer with HP atmas and Atma of Dragonrider. I think my normal healing Breaths were doing ~900 or so and 1500-1600 with Deep Breathing