Arduino Powered F-550 Hexacopter my biggest drone yet!

I am currently upgrading my F-450 QuadCopter to a F-550 HexaCopter.  Besides buying the frame I bought two additional motors and ESC's.  So far I have all the motors working and am getting close to having it ready to fly.  The frame kit comes with two bags of screws but no instructions.

It is assembled much like the F-450, you solder the ESC's to the base then assemble the legs to the base.  Note that the power connections to the battery are the opposite of the ESC's power connections.

The top piece does not have the holes for mounting the flight controller.  I think they wanted the controller to be mounted on the bottom piece.  The holes in the bottom piece fit a KK Controller nicely.  I tried several other controllers and they all failed to work properly.  Finally I tried a KK controller with LCD and it works almost every time.  Sometimes I need to re-calibrate the gyros.