The Regain is good for those times when your waiting on something to happen. At the start of the fight the tanks are holding the NM while the BLM and crew try to proc yellow or red or whatever before the destroy command is given. That's when you sit there and build up TP. Outside of abyssea on VWNM's you don't want all your melee on it as it'll just aoe rape them. So good piece while standing away to slowly build up TP for when it's time to run in.
RoTZ: Complete DM: O CoP: Complete AN: O 99 SAM, RDM, BLU, WAR, PLD, DRK
Nothing in this game is impossible if you set yourself to the task of actually doing it. Even dumb people can only hold you back for so long.
when you're hefting something that deadly, you don't miss - mobs get the **** out of the way instead...