"Silvyne hi, I have also Gaui 500 frame with APM. I am testing it in various setups, but I see your PID values are very different from mine. For example Stabilize Roll i have 4,6 you have really 1,6? it is hard to believe because when I changed it to…"

"You have to experiment with PID values. I have Gaui 500  frame and I also had to change some PID values to get it more or less good in altitude hold (plus minus 1 meter or plus minus 10 cm with sonor)."