LB3 is under powered for current content. Also in most cases DPS have very tight rotations that a LB channel+ animation will mess up. FOr the most part it's never going to be worth using outside of a scripted tank event. DPS it cuts into your own rotations too much and if you need to LB3 with a healer then you've already failed. IT's rare i've seen an healer LB3 save a group, more often it's the group gets fully raised and continues to make mistakes.

It needs to be reworked.