Been a long day, and I'm half-asleep, so pardon the extremely brief post.
They're nice markers, a few of my teammates have them. They shoot exactly like the Threshold, only with a much nicer board. Small, light, fast, relatively efficient for a spoolie. Nice little markers.
Every review I've read of them said they have efficiency like a Threshold, which would put them at the lower end of the efficiency scale even for spoolies, just above SFT shockers and G3's, on par with HE SFT's & NXT's.