[Cure Limit Break] When To Use It?

[Yoohre_WildRiver]

Am I right in thinking limit break craete a tonne of aggro, and therefore realy shouldnt be used by the healer with the exception of level 3 later in the game? I find the DPS limit break it much for uselfull, just letting the boss get to around 25% HP and BAM its a goner lol

i have done LB with my ACN/SMN almost on ever boss so far on story dungeon progression.. and i get 0 Agro,