To be honest, I find the fact that we Bards having a Healing LB to be a bit silly. Yes this can help in a fight when you need to revive party members, but remember, that's limited to 8 player parties, when you usually have more than 1 healer who could pull it off. If we had more than the DPS/healer/tank trinity going here, I'd suggest it being made into a support LB that uses a song to buff the party in some way. But since we don't, I really don't know how the LB could really be changed. As of right now, with the party-shared Limit Break meter, I don't see a reason why a Bard should ever use their limit break.