The naza is real good FC , easy setup and good GPS lock. I took some pic but can remember where to put it.
Just have some test Video of setup GPS, return to home, fail-safe..
The load test with 2 bottle of mineral water of 500ml make load of 1kg. The sunnysky angle is power full. the hexa lift off and fly with 40 to 45% of throttle
by the time I did some rabbit FC quad and Octo copter also another Y6 copter with DJI K-Woong for air Video. Will update soon....