Fair cop. I got no idea about the heavies and didn't think it through.
I'm assuming nothing comes close to hitting 5 targets for 4,5,6,7k in the Shien tree, but having singularity sweeps gives you a crowded area option, even if it hits for only 3,4,5,6k. Run as a vigilance spec until you need an AOE burst. Just puttin' it out there.
Stop stop stop
You're dececrating the best tree in swtor and speaking blasphemy. I will not stand for it >:I
Don't ever violate shien with singularity ideas again! >:I