I don't recommend this cute little tactic for 2 heals, and I don't recommend it period unless you're playing with good friends.
But that said - you can build up LB in phase 1 suuuuper fast by letting dps eat landslides and having healers quickly heal them back to full. Just make sure sch's do the heavy lifting so whms don't get med2 aggro from the tank.
It's not necessary at all, but if you need a l3 limit to kill the heart, thats a hell of a lot faster than standing in place and auto attacking for however long it takes to build a bar.
You could have issues with stomps in P5 if your dps is low though, so not really an actual solution, more of a way to keep your healers awake in P1 if you're building limit
(god I want Titan dead, I'm so sick of fighting him. I can dodge his shit in my sleep, but every fight I'm in, someone goes off the edge or eats plumes or bombs :[)