Thanks for the video link it wasnt that but very usefull I had props off and had throttle at half and pitched forward and you could hear it when stick was central after pitching forward the front motors were alot faster causing it to shoot back found out in the pi settings for roll and pitch I had to increse the I gain and I limit from
0
20
To
7
24
and that now makes it sound right after piching forward but still yet to test it and I made my cog centre aswell will let you know how it handles tomorrow night