Finally got mine sorted enough to be called "done". She flies phenomenal. 3S 3200mah puts the CG bang on. FT 2207 Radial with a 6x4.5 and i used 1450 mah in 10 minutes.
The Sparrow V3 is my first flight controller and it is a ton of fun. If some one would have told me I would be building little airplanes out of foam board that are fully capable of flying themselves I would have called them nuts. Autolaunch makes it easy, even on super blustery days like today. And when the couple walking by wanted to ask questions, I just flipped it in to RTH and let it loiter while they gawked.
What a fantastic little platform.