Ridiculously good wash coverage. The Swarms are aimed left and right, so that they don't overlap. For bigger events, I'll put the Swarms on top of truss totems and uplight the totems. For the biggest events, the Swarms stay home and I'll use moving heads (QSpot 260 LED) on the totems. I aim them high and above the audience - they're at least 12 feet in the air on top of the T-Par, and pointed up to the ceiling where the effect is more pronounced. Aiming them into a sea of people is pointless.