Here is a video of my new COAXIAL X8 with PIXHAWK and 3.4.5 firmware
I have sunnysky 3508 700kv and 13×5.5 on the top and 12×5.5 on the bottom
I fly with 2 × 5.200 mah 4s batterys
The factory pids fly good but its little overshooting
I have see no altitude drop in fast pitch
Here is a video