I lead with my healer ... so I will run in and either exorcism or judge to get some attention. If I LOS all the mobs will run to my healer who will have back peddled enough to deliver my mobs to my melee grinder. But I will do some IWT pulls. What I like is letting my team run to a mob and right before they get there I spam my DPS key to get a shield toss out and then the storm hits.

I hardly ever have issues getting the toons orbiting the mobs. Hardest part is to learn to slow the spam on the DPS key to keep the IWT in control of the toons so they don't go ape. Just slow it down and then spam one they get together and combat starts.