From the PDX Strobist April meetup at Vega Dance Studio.
Strobist: It's hard to remember with all the shots that I took that day, but there was an SB600 and an SB800 involved. One flash was camera left at about 45 degrees. Another flash was camera right with a homemade black straw gridspot to focus the light on her torso and face. Triggered via eBay triggers.