There's also the matter of Wrath and the use of Inner Beast. I believe that a lot of players are using Inner Beast to self-cure when taking a large amount of damage, but after becoming infuriated with five stacks of Wrath, players receive a 15% curing bonus, so instead of using Inner Beast right after taking heavy damage, I think it would be better to wait for heals from a white mage or scholar.
To me this says dont use it at all. lets say you DO time it just right so you top yourself off and not get overcures... these endgame mobs use these really hard hitting abilities much sooner than you can get your wrath back. so sure you healed yourself for 1200ish, but now you are in big trouble when you catch the next one.